Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems: Time and Temperature

This handy Math in Focus Grade 3 Workbook Answer Key Chapter 16 Practice 7 Real-World Problems: Time and Temperature provides detailed solutions for the textbook questions.

Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems: Time and Temperature

Solve.

Question 1.
A watch is 15 minutes slow. It shows 12:50 A.M. What is the actual time?
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 1
Answer: 1:05 AM
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q1
Explanation:
1. I labelled 12:50 AM on the timeline.
2. I subtracted 50 min of 12:50 from the 60 minutes. then I get 60-50=10 min. The 10 min from 12:50 is 10:00 AM.
3. In the question given was 15 minutes slow. Actually, we calculated 10 minutes and the remaining 5 minutes need to calculate.
4. From 1:00 Am the 5 minutes are 1:05 AM.
5. Therefore, the actual time is 1:05 AM.

Question 2.
A clock is 20 minutes fast. It shows 9:35 P.M. What is the actual time?
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 2
Answer: 9:15 PM
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q2
Explanation:
1. The time is showing 9:35 PM which is 20 min fast.
2. We need to calculate the actual time. Once watch the above diagram in which we represented the minutes.
3. Count from the 6 which is 20 (multiple of 5), 5 as 15, 4 as 10, 3 as 5.
4. Now the actual time will be 3 as 9:15, 4 as 9:20, 5 as 9:25, 6 as 9:30.
5. The time is showing 20 minutes faster so the actual time is 9:15 PM.

Question 3.
Joseph takes 50 minutes to install a software program. How long does he take to install 4 such software programs? Give your answer in hours and minutes.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 3
Answer: 3 h 20 min.
The minutes’ Joseph takes to install a software=50
The time he will take if he installs 4 softwares=X
Now calculate the value of X.
X=4*50=200 minutes.
We already know 1hour=60 min.
200 minutes we can say in hours and minutes are 3 hours 20 minutes.
200 can be divided into 180 and 20
If we want to convert minutes to hours then divide with 60.
=180/60
=3.
And the remaining 20 min will stay the same.
The total time he takes to install 4 software is 3 h 20 min.

Question 4.
Mr. Sperando left home at 6:35 A.M. He took 1 hour 5 minutes to travel to his office. What time did he reach his office?
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 4
Answer: 7:40 AM
Starting time to office=6:35 AM
The reaching time to office=X
The elapsed time=1 h 5 min.
By using the start time and elapsed time we can calculate the reaching time of office.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q4
Explanation:
1. I labelled starting time on the timeline.
2. By using the elapsed time I calculated ending time. I subtracted 35 min of 6:35 from the 60 min to get 25 min.
3. From 6:35 the 25 min of time is 7:00 AM. We need to calculate for 1 h 5 min, already we calculate 25 min extra 40 min we have to calculate.
4. we already know 1 hour=60 minute. By keeping this thing in mind we need to calculate. So we got 25 min in 1 h 5 min. 1 h 5 min=65 min. To get the remaining min, subtract 25 from 65 then we get 65-25=40. Now calculate for 40 min.
5. From 7:00 the 40 min will be 7:40 AM.
6. The ending time means the value of X is 7:40 AM.

Question 5.
Elaine spends 5 hours 30 minutes in school. If she reaches school at 9:00 A.M. What time does she leave school?
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 5
Answer: 2:30 PM
The elapsed time=5 h 30 min
Starting time=9:00 AM
The ending time of school=X.
By using the start time and elapsed time we can calculate the ending time of school.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q5
Explanation:
1. I labelled starting time on the timeline.
2. Between 9:00 AM to 10:00 AM there is 1 hour.
3. Between 10:00 AM to 11:00 AM there is 1 hour.
4. Between 11:00 AM to 12:00 PM there is 1 hour.
5. Between 12:00 PM to 1:00 PM there is 1 hour.
6. Between 1:00 PM to 2:00 PM there is 1 hour.
7. The hours are 9:00 to 2:00 is 10:00, 11:00, 12:00. 1:00. Totally, 5 hours.
8. Now we need to calculate for 30 minutes. From 2 the 30 min means 2:30
9. So the ending time of school X=2:30 PM.

Question 6.
Heather has a dance lesson after school. School ends at 2:55 P.M. It takes Heather 1 5 minutes to walk to her dance studio. After her 1 hour lesson, it takes Heather 15 minutes to walk home. What time does Heather get home?
Answer: 4:25 PM
The time the school ends=2:55 PM
The time is taken to walk to her dance school from school=15 min
The time she spends on dance school=1 hours
The time she goes home by walk from her dance school=15 min.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q6
Explanation:
1. Calculate by using the given timings.
2. Draw a timeline for better understanding. Once observe the above timeline.
3. The time 2:55, after 15 min the time is 3:10 PM.
4. She reached dance school by walk is 3:10 PM
5. She takes 1 hour in the dance school that is 4:10 PM
6. Now she is going to home on the walk which takes 15 min. So the time after 15 min is 4:25 PM.

Question 7.
Derek takes 30 minutes to make one friendship bracelet.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 6
a. How many hours does he take to make 8 similar bracelets?
Answer: 4 hours.
Explanation:
The number of bracelets he wants to make=8.
The time will take to complete 8 bracelets=X.
We already know 1 hour=60 min
In the question given for making 1 bracelet 30  minutes are taken.
X=8*30
X=240 min
To convert min to hours then divide 240 by 60.
X=240/60
X=4 hours.
Therefore, 4 hours will take to complete 8 bracelets.

b. How many similar bracelets can he make in 10 hours?
Answer: 20 bracelets.
We can calculate this by using cross multiplication.
for making 1 bracelet 30 minutes are taken.
For 10 bracelets, we need to calculate.
To calculate in hours convert min to hours.
1 hour = 60 min
if we make 2 bracelets, 1 hour will be taken.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q7
Therefore, in 10 hours 20 bracelets we could make.

Question 8.
Hannah left home at 6:15 A.M. She took 1 hour 55 minutes to ride to Maple Park and 2 hours 20 minutes to ride home. She did not spend any time at the park.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 7
a. How long did she spend riding in all?
Answer: 4 hours 25 minutes.
Explanation:
Follow these steps:
– Add the hours
– Add the minutes
– If the minutes are 60 or more, subtract 60 from the minutes and add 1 to hours
The timings are: 1 h 55 min and 2 h 20 min
Step 1: add the hours.
= 1+2
=3
Step 2: add the minutes.
=55+20
=75
Step 3:The minutes are >60, then subtract 60 from the minutes and 1 to the hours and do the same process.
=60-55
=5 min
Addin 1 to the hour:1+1=2.
Now by combining these two we get 1 h 5 min.
Now calculate for the 2 h 5 min and 2 h 20 min:
Step 4: add the hours=2+2=4
Step 5: add the min=20+5=25
By combing steps 4 and step 5 we get the time that is 4 hours 25 minutes.
Therefore, 4 h 25 min she spends on riding.

b. What time did she return home?
Answer:
The starting time=6:15 AM
The elapsed time =2 h 20 min
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q8
The time she returned to home is 8:35 AM

Question 9.
Twyla sews teddy bears. She takes 3 hours 40 minutes to sew the first teddy bear and 2 hours 55 minutes to sew the second teddy bear. She finishes sewing the teddy bears at 8:10 P.M. What time did she start sewing?
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 8
Answer:
The time is taken for the first teddy to sew=3 h 40 min
The time is taken to sew the second teddy=2 h 55 min
The ending time is 8:10 PM
Follow these steps:
– Add the hours
– Add the minutes
– If the minutes are 60 or more, subtract 60 from the minutes and add 1 to hours
The timings are: 3 h 40 min and 2 h 55 min
Step 1: add the hours.
= 3+2
=5
Step 2: add the minutes.
=55+40
=95.
Step 3:The minutes are >60, then subtract 60 from the minutes and 1 to the hours and do the same process.
=60-40
=20 min
Addin 1 to the hour:1+3=4.
Now by combining these two we get 4 h 20 min.
Now calculate for the 4 h 20 min and 2 h 20 min:
Step 4: add the hours=4+2=6
Step 5: add the min=20+20=40
By combing steps 4 and step 5 we get the time that is 4 hours 25 minutes.
Therefore, 6 h 40 min to sew total teddys.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q9
By applying elapsed time concept we have to calculate the starting time.
The time started for sewing teddys are 1:30 PM

Question 10.
Jim finished work at 5:10 P.M. according to his watch. His watch was 15 minutes slow.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 9
a. What was the actual time he finished work?
Answer:
The actual time is 5:25 PM
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q10

b. He worked for 8 hours 15 minutes. What was the actual time he started work?
Answer: 10:20 AM
We take the finished work above 5:25 PM (a).
The elapsed time is 8 h 15 min
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature q11
Once observe the timeline above.
By applying elapsed time rules:
The actual work starts at 10:20 AM.

Complete each story. Use the temperatures and words in the box.

Question 11.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 10
It was winter and the temperature outside was 12 degrees Fahrenheit. It was very cold outside. Kate had set the heater to 70 degrees Fahrenheit and it was warm in the house. She put a kettle of water to boil and the temperature of the water was 212 degrees Fahrenheit. The water was hot enough to make a hot drink.
Answer:
It was winter and the temperature outside was 12 degrees Fahrenheit. It was very cold outside. Kate had set the heater to 70 degrees Fahrenheit and it was warm in the house. She put a kettle of water to boil and the temperature of the water was 212 degrees Fahrenheit. The water was hot enough to make a hot drink.

Question 12.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 11
The temperature in the desert was a scorching ___________. We drank water to quench our thirst. The water was ___________ because it was in a cooler.
Math in Focus Grade 3 Chapter 16 Practice 7 Answer Key Real-World Problems Time and Temperature 12
Answer:
The temperature in the desert was a scorching 100 degrees Fahrenheit; hot. We drank water to quench our thirst. The water was  50 degrees Fahrenheit; cool because it was in a cooler.

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract

This handy Math in Focus Grade 1 Workbook Answer Key Chapter 4 Practice 2 Ways to Subtract detailed solutions for the textbook questions.

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract

Fill in each number bond. Then complete the subtraction sentence.

Example
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 1

Question 1.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 2
Answer:

Explanation:
6 – 3 = 3
The difference of 6 and 3 is 3

Question 2.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 3
Answer:

Explanation:
7 – 4 = 3
The difference of 7 and 4 is 3

Question 3.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 4
Answer:

Explanation:
The difference of 8 and 3 is 5

Question 4.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 5
Answer:

Explanation:
9 – 3 = 6
The difference of 9 and 3 is 6

Question 5.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 6
Answer:

Explanation:
10 – 8 = 2
The difference of 10 and 8 is 2

Fill in the number bonds.
Then write the missing numbers in the subtraction sentences.

Example
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 7

Question 6.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 8
Answer:

Explanation:
The difference of 10 and 3 is 7
10 – 3 = 7
Explained with number bond.

Question 7.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 9
Answer:

Explanation:
10 – 1 = 9
The difference of 10 and 1 is 9
Explained with number bond.

Question 8.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 10
Answer:

Explanation:
4 – 0 = 4
The difference of 4 and 0 is 4
Explained with number bond.

Question 9.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 11
Answer:

Explanation:
9 – 5 = 4
The difference of 9 and 5 is 4
Explained with number bond.

Some slickers are torn off. Write a subtraction sentence to find how many are left.

Example
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 12

Question 10.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 13
Answer:

Explanation:
5 – 2 = 3
The difference of 5 and 2 is 3

Question 11.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 14
Answer:

Explanation:
7 – 3 = 4
The difference of 7 and 3 is 4

Question 12.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 15
Answer:

Explanation:
7 – 5 = 2
The difference of 7 and 5 is 2

Subtract. Then match the answers to show where each animal lives.

Question 13.
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 16
Answer:

Explanation:
Matched the subtraction sentences with the subtraction facts.

Complete.
Then write the letters in the correct Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 17 to solve the riddle.

Question 14.
10 – 5 = 5 Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 18
Answer:

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 19
Explanation:
10 – 5 = 5
The difference of 10 and 5 is 5

Question 15.
9 – 8 = ____ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 20
Answer:

Explanation:
9 – 8 = 1
The difference of 9 and 8 is 1

Question 16.
6 – 3 = ______ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 22
Answer:

Explanation:
6 – 3 = 3
The difference of 6 and 3 is 3

Question 17.
7 – 5 = ____ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 23
Answer:

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 21
Explanation:
7 – 5 = 2
The difference of 7 and 5 is 2
7 – 5 = 2

Question 18.
9 – 4 = ___ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 24
Answer:
Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 19
Explanation:
9 – 4 = 5
The difference of 9 and 4 is 5

Question 19.
10 – 0 = ______ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 25
Answer:

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 26
Explanation:
10 – 0 = 10
The difference of 10 and 0 is 10

Question 20.
9 – 1 = ______ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 27
Answer:

Explanation:
9 – 1 = 8
The difference of 9 and 1 is 8

Question 21.
6 – 2 = ______ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 28
Answer:

Explanation:
6 – 2 = 4
The difference of 6 and 2 is 4

Question 22.
10 – 3 = ____ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 29
Answer:

Explanation:
10 – 3 = 7
The difference of 10 and 3 is 7

Question 23.
9 – 0 = ______ Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 30
Answer:

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 31
Explanation:
9 – 0 = 9
The difference of 9 and 0 is 9

Math in Focus Grade 1 Chapter 4 Practice 2 Answer Key Ways to Subtract 32
Answer:

Explanation:
The fish keeps there money at river bank
With the help of subtraction sentences found the answer with the given clues.

Math in Focus Grade 1 Chapter 4 Answer Key Subtraction Facts to 10

This handy Math in Focus Grade 1 Workbook Answer Key Chapter 4 Subtraction Facts to 10 detailed solutions for the textbook questions.

Math in Focus Grade 1 Chapter 4 Answer Key Subtraction Facts to 10

Math Journal

Color some bunnies brown. Then make a subtraction sentence.

Question 1.
Sally has 9 bunnies.
_______ bunnies are brown.
How many bunnies are white?
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 1
________ bunnies are white.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 2
Answer:


Explanation:
Sally has 9 bunnies.
9 bunnies are brown.
9 – 9 = 0
There are 0 bunnies which are white.

Draw some balls ¡n the drawer.
Cross some out.
Then make a subtraction sentence.

Question 2.
Jane has ________ balls.
Her dog chews _______ of the balls.
How many balls does she have left?
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 3
Jane has _______ balls left.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 4
Answer:


Explanation:
Jane has 6 balls.
Her dog chews 2 of the balls.
6 – 2 = 4
The dog left 4 balls.

Put On Your Thinking cap!

challenging practice

Pick three numbers to make a fact family. Then write each fact family.

Question 1.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 5
Answer:

Explanation:
An addition fact is the sum of two specific addends that will always equal the same result.
A subtraction fact family is a group of related math facts that use the same three numbers. Subtraction fact families also include addition, which is the inverse or opposite operation of subtraction.

Question 2.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 6
Answer:

Explanation:
An addition fact is the sum of two specific addends that will always equal the same result.
A subtraction fact family is a group of related math facts that use the same three numbers. Subtraction fact families also include addition, which is the inverse or opposite operation of subtraction.

Put On Your Thinking Cap!

Problem Solving

Read this riddle.

Example
I think of two numbers.
When I add the numbers, the answer is 5.
0 + 5 = 5
1 + 4 = 5
2 + 3 = 5
When I subtract the numbers, the answer is 1.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 7
5 – 0 = 5 ✗
4 – 1 = 3 ✗
3 – 2 = 1 ✓
What are the two numbers?
The two numbers are 2 and 3.

Now you try.

I think of two numbers.
When I add the numbers, the answer is 8.
When I subtract the numbers, the answer is less than 6.
What can the two numbers be?
The two numbers can be ___ and ____
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 8
Answer:
6 and 2
Explanation:
Let the 2 numbers are 2 and 6
2 + 6 = 8
6 – 2 = 4
4 < 6
so, My numbers satisfy all the conditions.

Chapter Review/Test

Vocabulary

Choose the correct word.

Question 1.
+ is plus, – is ____
Answer:
Minus
Explanation:
+ is plus, – is minus
they are the symbols used for representing addition and subtraction.

Question 2.
3 is ___ 7.
Answer:
Less than
Explanation:
number 3 is lesser than 7
3 < 7

Question 3.
8 – 2 means to ___ 2 from 8.
Answer:
Take away
Explanation:
If we take away 2 from 8 then the difference is 6
8 – 2 = 6

Question 4.
4 – 3 = 1 is a ____
Answer:
Subtraction sentence.
Explanation:
An subtraction sentence is a number sentence or simply an equation used to express subtraction. For example, 5 – 3 = 2 is a subtraction sentence.

Concepts and Skills

Complete each subtraction sentence.

Question 5.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 9
Answer:
8 – 3 = 5
Explanation:
There are 8 balls from that 3 are used
8 – 3 = 5
so, 5 are un used balls.

Question 6.
What is 4 less than 6?
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 10
Answer:
6 – 4 = 2
Explanation:
4 less than 6 is 2
In a ten frame there are 6 dots from that 4 are crossed
so, 2 are remaining.

Question 7.
What is 3 less than 9?
9 – ___ = ___
Answer:
9 – 3 = 6
Explanation:
3 less than 9 is 6
In a ten frame there are 9 dots from that 3 are crossed
so, 6 are remaining.

Count on from the number which is less.

Question 8.
6 – 3 = ___
Answer:
3
Explanation:
6 – 3 = 3
The difference of 6 and 3 is 3

Question 9.
9 – 7 = ___
Answer:
2
Explanation:
9 – 7 = 2
The difference of 9 and 7 is 2

Count back from the greater number.

Question 10.
10 – 5 = ___
Answer:
5
Explanation:
10 – 5 = 5
The difference of 10 and 5 is 5

Question 11.
7 – 6 = ___
Answer:
1
Explanation:
7 – 6 = 1
The difference of 7 and 6 is 1

Complete the number bond.

Then complete the subtraction sentence.

Question 12.
7 – 2 = ?
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 11
Answer:

Explanation:
The number bond explains the subtraction sentence
7 – 2 = 5

Question 13.
? – 2 = 8
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 12
Answer:

Explanation:
The number bond explains the subtraction sentence
10 – 2 = 8

Subtract.

Use related facts.

Question 14.
8 – 4 = ___
Answer:
4
Explanation:
8 – 4 = 4
The difference of 8 and 4 is 4

Question 15.
7 – 3 = ___
Answer:
4
Explanation:
7 – 3 = 4
The difference of 7 and 3 is 4

Question 16.
10 – ___ = 7
Answer:
3

Explanation:
10 – 3 = 7
The difference of 10 and 7 is 3

Question 17.
5 – ___ = 5
Answer:
0
Explanation:
5 – 0 = 5
The difference of 5 and 0 is 5

Write a subtraction story.

Question 18.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 13
Answer:

Explanation:
9 – 5 = 4
For the subtraction sentence created a subtraction story.

Write a fact family.

Question 19.
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 14
Answer:

Explanation:
An addition fact is the sum of two specific addends that will always equal the same result.
A subtraction fact family is a group of related math facts that use the same three numbers. Subtraction fact families also include addition, which is the inverse or opposite operation of subtraction.

Problem Solving.

Draw Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 15
Cross them out to solve.
Then write a number sentence.

Question 20.
James has 9 fish in his fish tank. He gives his friend 4 fish. How many fish does he have left?
Math in Focus Grade 2 Chapter 4 Answer Key Subtraction Facts to 10 16
____ – ___ = ____
James has ___ fish left.
Answer:

Explanation:
James has 9 fish in his fish tank. He gives his friend 4 fish.
9 – 4 = 5
James has  5 fish left.

Solve.

Use related facts to help you.

Question 21.
Mr. Peterson bakes 10 pies. He eats some of them. He now has 8 pies. How many pies did he eat?
10 – ___ = 8
Mr. Peterson ate ____ pies.
Answer:
10 – 2 = 8
Explanation:
10 – 8 = 2
Mr. Peterson bakes 10 pies. He eats some of them. He now has 8 pies.
10 – 2 = 8
Mr. Peterson ate 2 pies.

Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100

Go through the Math in Focus Grade 1 Workbook Answer Key Chapter 16 Numbers to 100 to finish your assignments.

Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100

Put On Your Thinking Cap!

Challenging Practice.

Read each clue. Cross out the numbers that are incorrect. Fill in the blanks.

Question 1.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 1
The mystery number is less than 90. It is greater 56.
The mystery number is ___________.
Answer:
The mystery number is 78.

Explanation:
Given that the mystery number is less than 90 and it is greater 56. So the number will be 78.

Question 2.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 2
The mystery number is greater than 50 but less than 70. It is 5 more than 60.
The mystery number is ____________.
Answer:
The mystery number is 65.

Explanation:
Given that the mystery number is greater than 50 but less than 70 and it is 5 more than 60. So the number will be 60+5 which is 65.

Question 3.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 4
The mystery number is less than 90 but greater than 63. It is 1 less than 80.
The mystery number is ____________.
Answer:
The mystery number is 79.

Explanation:
Given that the mystery number is less than 90 but greater than 63 and it is 1 less than 80 which is 80-1 = 79.

Put on Your Thinking Cap!

Problem Solving

Use the chart to complete the following number patterns. Explain the rule for the number pattern.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 3

Example
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 5

Question 1.
41, 46, 51, 56, __________, __________, __________
Rule: ______________________ ___________
Answer:
41,46,51,56,61,66,71.

Explanation:
The rule is Counting on in steps of 5 from the number before it or Adding 5 to the number before it.
41,46,51,56,61,66,71.

Question 2.
30, 36, 42, 48, __________, __________, __________
Rule: ___________________________ _________
Answer:
30,36,42,48,54,60,66.

Explanation:
The rule is Counting on in steps of 6 from the number before it or Adding 6 to the number before it.
30,36,42,48,54,60,66.

Question 3.
10, 20, 30, 40, __________, __________, __________
Rule: ____________________________ __________
Answer:
10,20,30,40,50,60,70.

Explanation:
The rule is Counting on in steps of 10 from the number before it or Adding 10 to the number before it.
10,20,30,40,50,60,70.

Question 4.
81, 78, 75, 72, , __________, __________, __________
Rule: ____________ ___________________________
Answer:
81,78,75,72,69,66,63.

Explanation:
The rule is Count back 3 from the number or Subtract 3 to the number.
81,78,75,72,69,66,63.

Question 5.
90, 85, 80, 75, __________, __________, __________
Rule: ____________ ___________________________
Answer:
90,85,80,75,70,65,60,55.

Explanation:
The rule is Count back 5 from the number or Subtract 5 to the number.
90,85,80,75,70,65,60,55.

Chapter Review/Test

Vocabulary

Choose the correct word.

Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 6

Question 1.
You _____________ numbers by finding which number is greater than or less than the other.
Answer:
You compare numbers by finding which number is greater than or less than the other.

Question 2.
When you do not need an exact number, you can _____________.
Answer:
When you do not need an exact number, you can estimate.

Question 3.
A ____________ is used to compare numbers.
Answer:
A number line is used to compare numbers.

Concepts and Skills

Fill in the blanks.

Question 4.
Write ninety-eight as a number. ____________
Answer:
99.

Explanation:
Ninety-eight as a number is 99.

Question 5.
Write 74 in word form. ____________
Answer:
Seventy-four.

Explanation:
The number 74 in words is Seventy-four.

Question 6.
80 and 7 make ____________.
Answer:
87.

Explanation:
80 and 7 make 87.

Question 7.
64 = __________ tens _________ ones
Answer:
64 = 6 tens 4 ones.

Explanation:
The number 64 has 6 tens and 4 ones.

Question 8.
____________ is 6 more than 54.
Answer:
60 is 6 more than 54.

Explanation:
Given that 6 more than 54 which is 54+6 = 60.

Compare.

Question 9.
Circle the greatest number.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 7
Answer:
76.

Explanation:
The greatest number is 76.
Math-in-Focus-Grade-1-Chapter-16-Answer-Key-Numbers-to-100-7-1

Question 10.
Circle the least number.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 8
Answer:
69.

Explanation:
The least number is 69.
Math-in-Focus-Grade-1-Chapter-16-Answer-Key-Numbers-to-100-8-1

Estimate then count.

Question 11.
Estimate the number of bowling pins. Then count the exact number.
Math in Focus Grade 1 Chapter 16 Answer Key Numbers to 100 9
Estimate: _____________
Count: ____________
Answer:
Estimate: 30
Count: 25.

Explanation:
In the above image, estimated bowling pins are 30 and the actual count is 25.

Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams

Practice the problems of Math in Focus Grade 2 Workbook Answer Key Chapter 8 Practice 3 Measuring in Grams to score better marks in the exam.

Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams

Fill in the blanks.

The mass of each Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 1 is 1 gram.

Question 1.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 2
The cap of a pen has a mass of ___ grams.
Answer: 4 grams.
Explanation:
Observe the picture carefully, there is a pen cap on one side and there are grams on another side.
There are 4 1 grams are present. Add all the grams it becomes 4.
Therefore, the weight of the pen cap is 4 grams.

Question 2.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 3
The pencil has a mass of __ grams.
Answer: 9 grams.
First, notice that you are looking for weight. A pencil weighs more than a paperclip but less than a kitten. This means it would be best measured in grams. The answer is the weight of a pencil would be best measured in grams.
Add all the grams present over there. Then we get 9 ‘1’ grams are there.
Therefore, the pencil has a mass of 9 grams.

Question 3.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 4
The sharpener has a mass of ___ grams.
Answer: 7 grams.
Explanation:
1. we will compare the weights of the sharpener and grams by placing them on each end of the scale.
2. The scale remains the same at a certain angle.
3. Add the grams and then write the mass of the sharpener.
4. Therefore, the sharpener has a mass of 7 grams.

Question 4.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 5
The eraser has a mass of ___ grams.
Answer: 16 grams.
Explanation:
1. we will compare the weights of the eraser and grams by placing them on each end of the scale.
2. The scale remains the same at a certain angle.
3. Add the grams and then write the mass of the eraser.
4. Therefore, the eraser has a mass of 16 grams.

Fill in the blanks.

Question 5.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 6
Answer:
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams q1
Explanation:
1. Start at 0 and count the lines.
2. From 0 count the next line it is 5.
3. After 5 it will be 10 and the next it will be 15. It was like multiples of 5.
4. According to that count the grams and fill the blanks according to that.

Question 6.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 7
Answer:
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams q6

Explanation:
1. Start at 0 and count the lines. Each line represents the 10
2. From 0 count the next line it is 10.
3. After 10 the next line will be 20, 30, 40, and so on…
4. According to that count the grams and write the blanks.

Question 7.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 8
Answer:
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams q7
Explanation:
1. Start at 0 and count the lines. Each line represents the 1
2. From 0 count the next line it is 1.
3. After 1 the next line will be 2, 3, 4, and so on… it is like multiples of 1.
4. According to that count the grams and write the blanks.

Fill in the missing numbers.

Question 8.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 9
Answer:
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams q8
1. Start at 0 and count the lines. Each line represents the 10
2. From 0 count the next line it is 10.
3. After 10 the next line will be 20, 30, 40, and so on…
4. According to that count the grams and write the blanks.

Fill in the blanks.

Question 9.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 10
The sandwich has a mass of __ grams.
Answer: 100  grams.
The measuring scale is showing 100 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Question 10.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 11
The box of crackers has a mass of __ grams.
Answer: 400 grams.
The measuring scale is showing 400 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Fill in the blanks.

Question 11.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 12
The pencil case has a mass of ___ grams.
Answer:250 grams.
The measuring scale is showing 250 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Question 12.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 13
The water bottle has a mass of ___ grams.
Answer:250 grams.
The measuring scale is showing 250 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Fill in the blanks.

Question 13.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 14
The bag of peanuts has a mass of ___ grams.
Answer:170 grams.
The bag of peanuts has a mass of 170 grams.
The measuring scale is showing 170 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Question 14.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 15
The box of crackers has a mass of ___ grams.
Answer: 370 grams.
The box of crackers has a mass of 370 grams.
The measuring scale is showing 370 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Fill in the blanks.

Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 16

Question 15.
The empty bowl has a mass of ___ grams.
Answer: 300 grams.
Already given the mass of empty bowl.
Math in Focus Grade 2 Chapter 8 Practice 3 Answer Key Measuring in Grams 17
Question 16.
Some marbles are put into the bowl.
The bowl and the marbles have a mass of __ grams
Answer: 480 grams.
The measuring scale is showing 480 grams.
Explanation:
1. Choose a scale that measures in grams. Make sure the scale can handle the size of objects you plan on weighing. Since a gram is a metric unit of measurement, your scale needs to use the metric system. Scales are available in digital and mechanical models.
2. Weigh an empty container first before putting an item in it. If you plan to measure something you can’t put directly on the scale, weigh the container before putting the item in it.
3. Press the tare button to zero out the scale. The mysterious button labelled “tare” on digital scales is a reset button. Press the tare button after each item you measure on the scale. If you weighed a container, you can fill it now.
4. Set the object you wish to measure on the scale. Place your object in the centre of the scale. If you measured a container first, you can now put the object you wish to measure inside the container. The scale will then calculate the heaviness of your object.
5. Finish weighing the object on the scale. Wait for the scale’s digital display or needle to come to a stop. When it finishes moving, read the number to find out how heavy the object is. Make sure that the weight is in grams. Then, remove your object and hit the tare button again to reset the scale.

Question 17.
What is the mass of the marbles? ___ grams
Answer: 180 grams.
Explanation:
The mass of the empty bottle=300 grams.
The total mass of marbles and empty bottle combine is 480 grams.
Now we need to calculate the mass of the marbles. Assume it as X.
Subtract the total mass and mass of the empty bottle.
X=480-300
X=180
Therefore, the mass of marbles is 180 grams.

Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams

Practice the problems of Math in Focus Grade 2 Workbook Answer Key Chapter 8 Practice 4 Comparing Masses in Grams to score better marks in the exam.

Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams

Find the mass of each vegetable. Then fill in the blanks.

Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams 1

Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams q1

Question 1.
The ___ is the heaviest.
Answer: Pumpkin
The pumpkin is having 750 grams. So it is the heaviest.

Question 2.
The ___ are the lightest.
Answer: peppers.
The mass of peppers is 100 grams which are the lightest.

Question 3.
The pumpkin is ____ grams heavier than the celery.
Answer: 500 grams.
The mass of the pumpkin is 750 grams.
The mass of celery is 250 grams.
The number of more grams the pumpkin is heavier than celery=X
Subtract the mass of pumpkin and mass of celery.
X=750-250
X=500
Therefore, 500 grams more than celery.

Question 4.
The ___ is heavier than the bag of peppers but lighter than the bag of carrots.
Answer: celery.
The mass of peppers=100 grams.
The mass of carrots=250 grams.
we need to calculate the thing which is heavier than peppers and lighter than carrots.
Now observe the masses of vegetables. Compare all the vegetables to each other.
The mass of celery is 200 grams.
It is the only one which is lighter than carrots and heavier than peppers.

Look at the boxes. Then fill in the blanks.

Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams 2

Question 5.
Which is the heaviest? Box ____
Answer: Box C
Explanation:
The mass of box A is 180 g
The mass of box B is 250 g
The mass of box C is 800 g
The mass of box D is 430 g
Now observe which is having the highest mass.
The heaviest box is 800 grams which are box C.

Question 6.
Which is the lightest? Box ___
Answer: Box A.
Explanation:
The mass of box A is 180 g
The mass of box B is 250 g
The mass of box C is 800 g
The mass of box D is 430 g
Now observe which is having the lightest mass.
The lightest box is 180 grams which are a box A.

Write heavier or lighter.

Question 7.
Box B is _____________ than Box D.
Answer: Lighter.
Explanation:
The mass of box B is 250 g
The mass of box D is 430 g
Box B is lesser than box D.
Therefore, box B is lighter than box D.

Question 8.
Box D is ____________ than Box A.
Answer: heavier
Explanation:
The mass of box D is 430 g
The mass of box A is 180 g
Box D is greater than box A.
Therefore, box D is heavier than box A.

Fill in the blanks.

Question 9.
Box C is ___ grams heavier than Box B.
Answer:
The mass of box B is 250 g
The mass of box C is 800 g
To calculate the number of more grams heavier than box B. Assume it as X.
X=800-250
X=550
Therefore, Box C is 550 grams heavier than Box B.

Question 10.
Box A is ___ grams lighter than Box C.
Answer: 620 grams.
Explanation:
The mass of box A is 180 g
The mass of box C is 800 g
To calculate Box A is how much lighter than Box C. Assume it as X
X=800-180
X=620
therefore, Box A is 620 grams lighter than Box C.

Question 11.
Order the boxes from the lightest to the heaviest.
Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams 3
Answer:
Math in Focus Grade 2 Chapter 8 Practice 4 Answer Key Comparing Masses in Grams q11
Explanation:
The mass of box A is 180 g
The mass of box B is 250 g
The mass of box C is 800 g
The mass of box D is 430 g
It was like an ascending order. It means we have to arrange from lightest to heaviest.

Math in Focus Grade 3 Chapter 14 Answer Key Fractions

Practice the problems of Math in Focus Grade 3 Workbook Answer Key Chapter 14 Fractions to score better marks in the exam.

Math in Focus Grade 3 Chapter 14 Answer Key Fractions

Put On Your Thinking Cap!

Challenging Practice

Question 1.
Write a fraction with denominator 9. The fraction should be less than \(\frac{1}{2}\).
Answer:
The fraction with denominator 9 and less than 1/2 are 1/9, 2/9, 3/9, 4/9.

Mark the number lines to help you.

Question 2.
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 1
Which is greater, \(\frac{3}{7}\) or \(\frac{2}{3}\)?
__________ > __________
Answer:
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-1
2/3 > 3/7
Explanation:
The fraction 2/3 is greater than 3/7.

Question 3.
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 1
Which is less, \(\frac{1}{8}\) or \(\frac{2}{5}\)?
__________ < __________
Answer:
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-1 (1)
1/8 < 2/5
Explanation:
The fraction 1/8 is lees than 2/5.

Question 4.
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 1
Order \(\frac{1}{7}, \frac{3}{5}, \frac{3}{8}\), and \(\frac{8}{9}\) from least to greatest.
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 2
Answer:
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-1 (2)
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-2
Explanation:
The fractions from least to greatest are 1/7, 3/8, 3/5, 8/9.

Put On Your Thinking Cap!

Problem Solving

Question 1.
Shade to show a fraction greater than \(\frac{1}{4}\) but less than \(\frac{1}{2}\).
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 3
Answer:
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-3
Explanation:
In the above image we can observe the shaded part is greater than 1/4 and less than 1/2.
Question 2.
Sam wants to shade \(\frac{2}{3}\) of the figure. He has already shaded 4 squares. How many more squares must he shade? Help him shade.
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 4
Answer:
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-4
Explanation:
Sam wants to shade 2/3 of the figure. He has already shaded 4 squares. He shaded 4 more squares.

Question 3.
Shade the figure to show each fraction below. Use a different color for shading each fraction.
\(\frac{1}{3}, \frac{1}{4}, \frac{1}{12}\)
Math in Focus Grade 3 Chapter 14 Answer Key Fractions 5
What fraction of the figure is unshaded?
___________ of the figure is unshaded.
Answer:
Math-in-Focus-Grade-3-Chapter-14-Answer-Key-Fractions-5
Explanation:
1/3 of 12 = 4
1/4 of 12 = 3
1/12 of 12 = 1
4/12 of the figure is unshaded.

Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions

Practice the problems of Math in Focus Grade 3 Workbook Answer Key Chapter 14 Practice 2 Understanding Equivalent Fractions to score better marks in the exam.

Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions

Example

Shade the part(s) to show fractions equivalent to \(\frac{1}{4}\). Then write the fractions.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 1

Question 1.
Shade the part(s) to show fractions equivalent to \(\frac{1}{5}\). Then write the fractions.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 2
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-2
Explanation:
In the above diagram we can observe 3 images.
In first image we can observe one – fifth part is shaded.
The given fraction is 1/5. Multiply numerator and denominator with 2. The equivalent fraction for 1/5 is 2/10. So, 2/10 part is shaded in second image.
The given fraction is 1/5. Multiply numerator and denominator with 3. The equivalent fraction for 1/5 is 3/15. So, 3/15 part is shaded in third image.

Question 2.
Divide the second bar into 10 equal parts. Shade the part(s) to show a fraction equivalent to \(\frac{2}{5}\). Write the fraction.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 3
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-3
Explanation:
In the above image we can observe two bars.
The first bar is divided into 5 equal parts. In the first bar 2/5 part is shaded.
We have to divide second bar into 10 equal parts. The equivalent fraction for 2/5 is 4/10. In second bar 4/10 part is shaded with red color.

Question 3.
Divide the second bar into 12 equal parts. Shade the part(s) to show a fraction equivalent to \(\frac{5}{6}\). Write the fraction.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 4
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-4
Explanation:
In the above image we can observe two bars.
The first bar is divided into 6 equal parts. In the first bar 5/6 part is shaded.
We have to divide second bar into 12 equal parts. The equivalent fraction for 5/6 is 10/12. In second bar 10/12 part is shaded with red color.

Question 4.
Find the missing numerator or denominator.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 5
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-5
Explanation:
In the above diagram we can observe four images.
In first image 3/4 part is shaded.
In second image 6/8 part is shaded. The missing denominator is 8.
In third image 9/12 part is shaded. The missing numerator is 9.
In fourth image 12/16 part is shaded. The missing denominator is 16.

Use number lines to find equivalent fractions.

Example
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 6

Question 5.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 7
The equivalent fractions are __________, _________, and __________.
Answer:
The equivalent fractions are 3/4, 6/8, and 9/12.
Explanation:
In the above image we can observe three number lines.
In first number line we can observe 3/4. In the second number line we can observe 6/8. In third number line we can observe 9/12. The equivalent fractions are 3/4, 6/8, and 9/12.
Fill in the missing tractions on the number lines Then use the number lines to find the missing numerators and denominators.

Question 6.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 8
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-8
Explanation:
In the above image we can observe three number lines.
In first number line we can observe some fractions are missing. The missing fractions are 2/5 and 3/5.
In second number line also we can observe some fractions are missing. The missing fractions are 2/10, 5/10 and 8/10.
In third number line also we can observe some fractions are missing. The missing fractions are 3/15, 6/15, 8/15, 11/15 and 13/15.

Question 7.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 9
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-9
Explanation:
In first number line we can observe 2/5. In second number line we can observe 4/10 exactly below to the fraction 2/5. The equivalent fraction for 2/5 is 4/10.The missing numerator is 4.

Question 8.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 10
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-10
Explanation:
In first number line we can observe 3/5. In third number line we can observe 9/15 exactly below to the fraction 3/5. The equivalent fraction for 3/5 is 9/15.The missing numerator is 3. The missing denominator is 15.

Question 9.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 11
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-11
Explanation:
In third number line we can observe 3/15. In second number line we can observe 2/10 exactly above to the fraction 3/15. The missing denominator is 10.
In first number line we can observe 1/5 exactly above to the fraction 2/10. The equivalent fractions for 3/15 is 2/10 and 1/5.The missing numerator is 1. The missing denominator is 5.

Question 10.
Math in Focus Grade 3 Chapter 14 Practice 2 Answer Key Understanding Equivalent Fractions 12
Answer:
Math-in-Focus-Grade-3-Chapter-14-Practice-2-Answer-Key-Understanding-Equivalent-Fractions-12
Explanation:
In first number line we can observe 3/5. In second number line we can observe 6/10 exactly below to the fraction 3/5. The missing numerator is 6.
In third number line we can observe 9/15 exactly below to the fraction 6/10. The equivalent fractions for 3/5 is 6/10 and 9/15.The missing numerator is 9. The missing denominator is 15.

Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction

Practice the problems of Math in Focus Grade 3 Workbook Answer Key Chapter 10 Practice 4 Subtraction to score better marks in the exam.

Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction

Subtract. Color the answers on the picture.

Question 1.
$6.35 – $6.00 = $___________
Answer:
$6.35 – $6.00 = $0.35
Explanation:
Perform subtraction operation on above two numbers. Subtract $6.00 from $6.35 the difference is $0.35.

Question 2.
$8.35 – $5.00 = $___________
Answer:
$8.35 – $5.00 = $3.35
Explanation:
Perform subtraction operation on above two numbers. Subtract $5.00 from $8.35 the difference is $3.35.

Question 3.
$98.20 – $8.00 = $___________
Answer:
$98.20 – $8.00 = $90.20
Explanation:
Perform subtraction operation on above two numbers. Subtract $8.00 from $98.20 the difference is $90.20.

Question 4.
$76.65 – $12.00 = $___________
Answer:
$76.65 – $12.00 = $64.65
Explanation:
Perform subtraction operation on above two numbers. Subtract $12.00 from $76.65 the difference is $64.65.

Question 5.
$26.40 – $9.00 = $___________
Answer:
$26.40 – $9.00 = $17.40
Explanation:
Perform subtraction operation on above two numbers. Subtract $9.00 from $26.40 the difference is $17.40.

Question 6.
$45.60 – $39.00 = $___________
Answer:
$45.60 – $39.00 = $6.60
Explanation:
Perform subtraction operation on above two numbers. Subtract $39.00 from $45.60 the difference is $6.60.

Question 7.
$5.25 – $0.05 = $___________
Answer:
$5.25 – $0.05 = $5.20
Explanation:
Perform subtraction operation on above two numbers. Subtract $0.05 from $5.25 the difference is $5.20.

Question 8.
$1.45 – $0.35 = $___________
Answer:
$1.45 – $0.35 = $1.10
Explanation:
Perform subtraction operation on above two numbers. Subtract $0.35 from $1.45 the difference is $1.10.

Question 9.
$14.90 – $0.70 = $___________
Answer:
$14.90 – $0.70 = $14.20
Explanation:
Perform subtraction operation on above two numbers. Subtract $0.70 from $14.90 the difference is $14.20.

Question 10.
$20.75 – $0.30 = $___________
Answer:
$20.75 – $0.30 = $20.45
Explanation:
Perform subtraction operation on above two numbers. Subtract $0.30 from $20.75 the difference is $20.45.

Question 11.
$15.60 – $0.35 = $___________
Answer:
$15.60 – $0.35 = $15.25
Explanation:
Perform subtraction operation on above two numbers. Subtract $0.35 from $15.60 the difference is $15.25.

Question 12.
$26.70 – $0.45 = $___________
Answer:
$26.70 – $0.45 = $26.25
Explanation:
Perform subtraction operation on above two numbers. Subtract $0.45 from $26.70 the difference is $26.25.

Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction 1
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-4-Answer-Key-Subtraction-1
Explanation:
The above answers are colored on the picture.

Subtract.

Question 13.
Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction 2
$3 – $1 =$___________
20¢ – 15¢ = ___________¢
$___________ + ___________¢ = $___________
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-4-Answer-Key-Subtraction-2
$3 – $1 = $2
20¢ – 15¢ = 5¢
$2 + 5¢ = $2.05
Explanation:
In the above image we can observe that $3.20 is divided into $3 and 20¢. The $1.15 is divided into $1 and 15¢.
Subtract the dollars.
$3 – $1 = $2
Subtract the cents.
20¢ – 15¢ = 5¢
Add the cents to the dollars.
$2 + 5¢ = $2.05

Question 14.
Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction 3
$___________ – $___________ = $___________
___________¢ – ___________¢ = ___________¢
$___________ + ___________¢ = $___________
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-4-Answer-Key-Subtraction-3
$10 – $2 = $8
50¢ – 50¢ = 0¢
$8 + 0¢ = $8.00
Explanation:
In the above image we can observe that $10.50 is divided into $10 and 50¢. The $2.50 is divided into $2 and 50¢.
Subtract the dollars.
$10 – $2 = $8
Subtract the cents.
50¢ – 50¢ = 0¢
Add the cents to the dollars.
$8 + 0¢ = $8.00

Question 15.

Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction 4
$___________ – $___________ = $___________
___________¢ – ___________¢ = ___________¢
$___________ + ___________¢ = $___________
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-4-Answer-Key-Subtraction-4
$65 – $3 = $62
65¢ – 5¢ =60¢
$62 + 60¢ = $62.60
Explanation:
In the above image we can observe that $65.65 is divided into $65 and 65¢. The $3.05 is divided into $3 and 5¢.
Subtract the dollars.
$65 – $3 = $62
Subtract the cents.
65¢ – 5¢ =60¢
Add the cents to the dollars.
$62 + 60¢ = $62.60

Question 16.
Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction 5
$___________ – $___________ = $___________
___________¢ – ___________¢ = ___________¢
$___________ + ___________¢ = $___________
Answer:

Math in Focus Grade 3 Chapter 10 Practice 4 Answer Key Subtraction 6

Math-in-Focus-Grade-3-Chapter-10-Practice-4-Answer-Key-Subtraction-5
$83 – $12 = $71
55¢ – 45¢ = 10¢
$71 + 10¢ = $71.10
Explanation:
In the above image we can observe that $83.55 is divided into $83 and 55¢. The $12.45 is divided into $12 and 45¢.
Subtract the dollars.
$83 – $12 = $71
Subtract the cents.
55¢ – 45¢ = 10¢
Add the cents to the dollars.
$71 + 10¢ = $71.10

Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition

Practice the problems of Math in Focus Grade 3 Workbook Answer Key Chapter 10 Practice 2 Addition to score better marks in the exam.

Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition

Complete each number bond. Then add.

Example
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 1

Question 1.
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 2
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-2-Answer-Key-Addition-2
Explanation:
To make $6.95 to the nearest integer we have to add required ¢ to the $6.95.
A number bond is a simple addition of two numbers that add up to give the sum. Add these two numbers $6.95 and 5¢ the sum is $7.
The number $9.05 is divided into two parts as $9 and 5¢.
In place of $9.05 and $6.95 we have to use $9 and $7.
Add $9 with $7 the sum is $16.

Question 2.
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 3
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-2-Answer-Key-Addition-3
Explanation:
To make $11.85 to the nearest integer we have to add required ¢ to the $11.85.
A number bond is a simple addition of two numbers that add up to give the sum. Add these two numbers $11.85 and 15¢ the sum is $12.
The number $70.35 is divided into two parts as $70.20 and 15¢.
In place of $70.35 and $11.85 we have to use $70.20 and $12.
Add $70.20 with $12 the sum is $82.20.

Question 3.
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 4
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-2-Answer-Key-Addition-4
Explanation:
To make $10.75 to the nearest integer we have to add required ¢ to the $10.75.
A number bond is a simple addition of two numbers that add up to give the sum. Add these two numbers $10.75 and 25¢ the sum is $11.
The number $12.40 is divided into two parts as $12.150 and 25¢.
In place of $12.40 and $10.75 we have to use $12.15 and $11.
Add $12.15 with $11 the sum is $23.15.

Complete each number bond. Then add.

Example
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 5

Question 4.
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 6
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-2-Answer-Key-Addition-6
Explanation:
To make $0.95 to the nearest integer we have to add required ¢ to the $0.95.
A number bond is a simple addition of two numbers that add up to give the sum. Add these two numbers 95¢ and 5¢ the sum is $1.
In place of $0.95 we have to use $1. Add $4.75 with $1 the sum is $5.75.
The ¢ which are added to the given number $0.95 to make nearest integer are subtracted from the above sum.
Subtract 5¢ from $5.75 the difference is $5.70.
By adding $4.75 with $0.95 the sum is also $5.70.

Question 5.
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 7
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-2-Answer-Key-Addition-7
Explanation:
To make $0.80 to the nearest integer we have to add required ¢ to the $0.80.
A number bond is a simple addition of two numbers that add up to give the sum. Add these two numbers 80¢ and 20¢ the sum is $1.
In place of $0.80 we have to use $1. Add $16.40 with $1 the sum is $17.40.
The ¢ which are added to the given number $0.80 to make nearest integer are subtracted from the above sum.
Subtract 20¢ from $17.40 the difference is $17.20.
By adding $16.40 with $0.80 the sum is also $17.20.

Question 6.
Math in Focus Grade 3 Chapter 10 Practice 2 Answer Key Addition 8
Answer:
Math-in-Focus-Grade-3-Chapter-10-Practice-2-Answer-Key-Addition-8
Explanation:
To make $0.75 to the nearest integer we have to add required ¢ to the $0.75.
A number bond is a simple addition of two numbers that add up to give the sum. Add these two numbers 75¢ and 25¢ the sum is $1.
In place of $0.75 we have to use $1. Add $43.55 with $1 the sum is $44.55.
The ¢ which are added to the given number $0.75 to make nearest integer are subtracted from the above sum.
Subtract 25¢ from $44.55 the difference is $44.30.
By adding $43.55 with $0.75 the sum is also $44.30.