Hillary

Practice the problems of Math in Focus Grade 2 Workbook Answer Key Chapter 10 Practice 1 Meaning of Sum to score better marks in the exam.

Math in Focus Grade 2 Chapter 10 Practice 1 Answer Key Meaning of Sum

Find the sum of the numbers.

96 and 73

The sum of 96 and 73 is 169

Question 1.
700 and 200

The sum of ___ and ___ is ____.
Answer:

The sum of 700 and 200 is 900

Question 2.
215 and 507

The sum of ___ and ___ is ____.
Answer:

The sum of 215 and 507 is 722

Solve.

Use bar models to help you.

Question 3.
Al spent $27 on a shirt and $120 on books. Find the sum of money Al spent.
___ + ___ = _____
The sum of money Al spent is $ _____.
Answer:

Explanation:
Given:
Al has spent $ 27 on a shirt
And $ 120 on a Book
The total amount he spent was
$27 + $120 = $147
The sum of money Al spent is $ 147.

Question 4.
Harry is 12 years old. His sister is 9 years younger. Find the sum of their ages.
____ + ___ = ____
The sum of their ages is ____ years.
Answer:

Explanation:
Given:
harry is 12 years old
and he has a sister who is 9 years old
the total sum of the there age will be as follows
12 + 9 = 21
The sum of their ages is 21 years.

Question 5.
Greg has collected 32 green jumping beans. His mother gives him 15 red jumping beans more. Find the sum of jumping beans Greg has now.
___ + ____ = ____
The sum of jumping beans Greg has now is ____
Answer:

Explanation:
Greg has 32 green colored jumping beans
Later on his mother had given more 15 jumping beans which were in red color
Now, The total jumping beans now Greg has is
32 + 15 = 47
The sum of jumping beans Greg has now is 47

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

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

Climb each step by adding mentally.

Question 1.

Answer:

Find the missing numbers.
Add mentally.

Example

Question 2.
75 + 6 = ?

75 + ___ = ____
____ – ___ = ____
So, 75 + 6 = ___
Answer:

Explanation:
75 + 10 = 85
85 – 4 = 81
So, 75 + 6 = 81

Question 3.
69 + 5 = ___
Answer:

Explanation:
69 + 10 = 79
79 – 5 = 74
So, 69 + 5 = 74

Question 4.
48 + 4 = ___
Answer:

Explanation:
48 + 10 = 58
58 – 6 = 52
So, 48 + 4 = 52

Question 5.
29 + 9 = ___
Answer:

Explanation:
29 + 10 = 39
39 – 1 = 38
So, 29 + 9 = 38

Question 6.
65 + 8 = ___
Answer:

Explanation:
65 + 10 = 75
75 – 2 = 73
So, 65 + 8 = 73

Find the missing numbers. Add mentally.

Example
123 + 5 = ?

Question 7.
632 + 7 = ___
Answer:

Explanation:
2 + 7 = 9
630 + 9 = 639
so, 632 + 7 = 639

Question 8.
712 + 3 = ___
Answer:

Explanation:
2 + 3 = 5
710 + 5 = 715
so, 712 + 3 = 715

Question 9.
534 + 5 = ___
Answer:

Explanation:
4 + 5 = 9
530 + 9 = 539
so, 534 + 5 = 539

Question 10.
375 + 6 = ___
Answer:

Explanation:
5 + 6 = 11
370 + 11 = 381
so, 375 + 6 = 381

Question 11.
275 + 8 = ___
Answer:

Explanation:
5 + 8 = 13
270 + 13 = 283
so, 275 + 8 = 283

Question 12.
629 + 9 = ___
Answer:

Explanation:
9 + 9 = 18
620 + 18 = 638
so, 629 + 9 = 638

Find the missing numbers.
Add mentally.

Example
246 + 20 = ?

Question 13.
348 + 50 = ___
Answer:

Explanation:
40 + 50 = 90
308 + 90 = 398
so, 348 + 50 = 398

Question 14.
741 + 30 = ___
Answer:

Explanation:
40 + 30 = 70
701 + 70 = 771
so, 741 + 30 = 771

Question 15.
653 + 10 = ___
Answer:

Explanation:
50 + 10 = 60
603 + 60 = 663
so, 653 + 10 = 663

Example
352 + 70 = ?

Question 16.
427 + 80 = ___
Answer:

Explanation:
427  + 100 = 527
527 – 20 = 507
so, 427 + 80 = 507

Question 17.
535 + 90 = ___
Answer:

Explanation:
535  + 100 = 635
635 – 10 = 625
so, 535 + 90 = 625

Question 18.
164 + 60 = ___
Answer:

Explanation:
164  + 100 = 265
264 – 40 = 224
so, 164 + 60 = 224

Find the missing numbers.
Add mentally.

Example
315 + 200 = ?

Question 19.
765 + 100 = ?

Explanation:
___ + 100 = ___
____ + ____ = ____
So, 765 + 100 = ___
Answer:

Explanation:
700 + 100 = 800
65 + 800 = 865
So, 765 + 100 = 865

Add mentally.

Question 20.
452 + 500 = ___
Answer:

Explanation:
400 + 500 = 900
52 + 900 = 952
So, 452 + 500 = 952

Question 21.
264 + 300 = ___
Answer:

Explanation:
200 + 300 = 500
64 + 500 = 564
So, 264 + 300 = 564

Question 22.
412 + 300 = ___
Answer:

Explanation:
400 + 300 = 700
12 + 700 = 712
So, 412 + 300 = 712

Question 23.
178 + 300 = ____
Answer:

Explanation:
100 + 300 = 400
78 + 400 = 478
So, 178 + 300 = 478

Question 24.
708 + 200 = ___
Answer:

Explanation:
700 + 200 = 900
8 + 900 = 908
So, 708 + 200 = 908

Question 25.
320 + 600 = ___
Answer:

Explanation:
300 + 600 = 900
20 + 900 = 920
So, 320 + 600 = 920

Practice the problems of Math in Focus Grade 2 Workbook Answer Key Chapter 10 Practice 4 Key Mental Subtraction to score better marks in the exam.

Math in Focus Grade 2 Chapter 10 Practice 4 Answer Key Mental Subtraction

Find the missing numbers. Subtract mentally.

Example
43 – 6 = ?

Question 1.
56 – 8 = ?

56 – ___ = ____
____ + ___ = ____
So, 56 – 8 = ___
Answer:

Explanation:
56 – 10 = 46
46 + 2 = 48
So, 56 – 8 = 48

Subtract mentally.

Question 2.
84 – 7 = ____
Answer:

Explanation:
84 – 10 = 74
74 + 3 = 77
So, 84 – 7 = 77

Question 3.
38 – 9 = ___
Answer:

Explanation:
39 – 10 = 28
28 + 1 = 9
So, 38 – 9 = 29

Question 4.
62 – 8 = ____
Answer:

Explanation:
62 – 10= 52
52 + 2 = 54
So, 62 – 8 = 54

Question 5.
76 – 7 = ____
Answer:

Explanation:
76 – 10 = 66
66 + 3 = 69
So, 62 – 8 = 69

Find the missing numbers. Subtract mentally.

Example
789 – 5 = ?

Question 6.
398 – 4 = ___
Answer:

Explanation:
8 – 4 = 4
390 + 4 = 394
So, 398 – 4 = 394

Question 7.
427 – 2 = ___
Answer:

Explanation:
7 – 2 = 5
420 + 5 = 425
So, 427 – 2 = 425

Question 8.
358 – 6 =___
Answer:

Explanation:
8 – 6 = 2
350 + 2 = 352
So, 358 – 6 = 352

Find the missing numbers.
Subtract mentally.

Example

Question 9.
472 – 3 = ___
Answer:

Explanation:
472 – 10 = 462
462 + 7 =469
so,472 – 3 = 469

Question 10.
513 – 9 = ___
Answer:

Explanation:
513 – 10 = 503
503 + 1 = 504
so,513 – 9 = 504

Question 11.
394 – 7 = ___
Answer:

Explanation:
394 – 10 = 384
384 + 3 = 387
so, 384 – 7 = 387

Find the missing numbers.
Subtract mentally.

Example

Question 12.
475 – 40 = ___
Answer:

Explanation:
70 – 40 = 30
405 + 30 = 435
so, 475 – 40 = 435

Question 13.
466 – 30 = ___
Answer:

Explanation:
60 – 30 = 30
406 + 30 = 436
so, 466 – 30 = 436

Question 14.
654 – 50 = ____
Answer:

Explanation:
50 – 50 = 0
604 + 0 = 604
so, 654 – 50 = 604

Find the missing numbers.
Subtract mentally.

Example

Question 15.
516 – 70 = ___
Answer:

Explanation:
516 – 100 = 416
416 + 30 = 446
so, 516 – 70 = 446

Question 16.
228 – 30 = ___
Answer:

Explanation:
228 – 100 = 128
128 + 70 = 198
so, 228 – 30 = 198

Question 17.
436 – 40 = ___
Answer:

Explanation:
436 – 100 = 336
336 + 60 = 396
so, 436 – 40 = 396

Find the missing numbers. Subtract mentally.

Example

Explanation:

Question 18.
832 – 400 = ?

Explanation:
___ – 400 = ___
____ + ___ = ____
So, 832 – 400 = ___
Answer:

Explanation:
800 – 400 = 400
32 + 400  = 432
so, 832 – 400 = 432

Find the missing numbers. Subtract mentally.

Question 19.
348 – 300 = ___
Answer:

Explanation:
300 – 300 = 0
48 + 0 = 48
so, 348 – 300 = 48

Question 20.
548 – 300 = ___
Answer:

Explanation:
500 – 300 = 200
48 + 200 = 248
so, 548 – 300 = 248

Question 21.
615 – 400 = ____
Answer:

Explanation:
600 – 400 = 200
15 + 200 = 215
so, 615 – 400 = = 215

Question 22.
465 – 200 = ____
Answer:

Explanation:
400 – 200 = 200
65 + 200 = 265
so, 465 – 200 = = 265

Practice the problems of Math in Focus Grade 2 Workbook Answer Key Chapter 11 Practice 1 Coins and Bills to score better marks in the exam.

Math in Focus Grade 2 Chapter 11 Practice 1 Answer Key Coins and Bills

Circle the bills that make the given amount.

Example

Question 1.

Answer:
10 dollar = 1 d0llar + 1 dollar + 5 dollar + 5 dollar.
10 dollars = 12 dollars.
Then circle the 10 d0llars

Question 2.

Answer:
20 dollars = 10 dollars + 5 dollars + 5 dollars + 1 dollar + 1 dollar + 1 dollar.
20 dollars = 23 dollars.
Then circle the 20 dollars.

Circle the coins that make one dollar.

Question 3.

Answer:
1 dollar = 100 cents
The circle part is equal to 100 cents.

Question 4.

Answer:
1 dollar = 100 cents
The circle part is equal to 100 cents.

Find the value of the coins. Then write less than, equal to, or more than.

Example

Question 5.

___________ $1
Answer:
1 Quarter + 10 cents + 10cents + 5 cents + 5 cents.
1 quarter = 25 cents
25 cents + 10 cents + 10cents + 5 cents + 5 cents = 55cents
55 cents less than $1.

Question 6.

___________ $1
Answer:
Quarter + quarter + quarter + 10 cents + 10 cents + 5 cents.
1 quarter = 25 cents.
25 cents + 25 cents + 25 cents + 10 cents + 10 cents + 5 cents = 100 cents.
100 cents equal to $1

Question 7.

___________ $1
Answer:
Quarter + quarter + quarter + 10 cents + 10 cents + 10 cents + 5 cents + 5 cents.
1 quarter = 25 cents.
25 cents + 25 cents + 25 cents + 10 cents + 10 cents + 10 cents + 5 cents + 5 cents = 115 cents.
100 cents = $1
115 cents more than to $1

Write the amount of money.

Example

Question 8.

$_____________
Answer: $10 + $10 + $10 + $10 + $10 +$1 + $1 + $1 + $1 + 1 quarter + 1 quarter + 1 quarter + 1 quarter.
1 quarter = 25 cents.
4 quarters = $1
$10 + $10 + $10 + $10 + $10 +$1 + $1 + $1 + $1 + $1 = $55

Question 9.

$_____________
Answer:
$10 + $10 + $5 + $5 + $5 +$1 + 1 quarter + 1 quarter + 1 quarter + 1 quarter + 10 cents + 1 dime + 10 cents + 1 dime + 10 cents.
1 quarter = 25 cents.
1 dime = 10 cents.
$10 + $10 + $5 + $5 + $5 +$1 + 25 cents  + 25 cents + 25 cents + 25 cents + 10 cents + 10 cents + 10 cents + 10 cents + 10 cents = $37.50

Write the amount of money.

Example

Question 10.

$_____________
Answer:
1 cent = 0.01 dollar.
Ninety six cents = $0.96

Question 11.

$_____________
Answer:
Sixty one dollars = $61

Write the amount of money.

Question 12.

$_____________
Answer:
1 cent = 0.01 dollar.
99 cents = 0.99 dollars.
Fourteen dollars and ninety nine cents = $14.99

Question 13.

$_____________
Answer:
1 cent = 0.01 dollar
50 cents = 0.50 d0llar.

Thirty dollars and fifty cents = $13.50

Question 14.

$_____________
Answer:
Fifteen dollars = $15

Question 15.

$_____________
Answer:
1 cent = 0.01 dollar.
25 cents = 0.25 dollar.
Seventy eight dollars and twenty five cents = $78.25

Fill in the blanks.

Example

Question 16.
$.03 ………………….
__________ dollars __________ cents
Answer:
$.03 $0.03 dollars 0 cents

Question 17.
$40.20………………….
__________ dollars __________ cents
Answer:
$40.20 = $40 dollars 20 cents

Question 18.
$27.15 ………………….
__________ dollars __________ cents
Answer:
$27.15 = $27 dollars 15 cents

Match

Answer:

Count the money. Then circle the correct amount.

Example

Question 23.

$7.00
$7.07
$7.70
Answer:
5 dollars + 1 dollar + 1 dollar + 10 cents + 10 cents + 1 quarter + 1 quarter.
1 quarter = 25 cents.
The total money is $7.70
The correct money is $7.70

Question 24.

$1.10
$11.00
$11
Answer:
1 dollar + 10 cents = $1.10

Question 25.

$50.15
$.65
$5.15
Answer:
20 dollar + 20 dollar + 10 dollar + 10 cents + 5 cents = $50.15

Complete.

Example

Question 26.

__________ dollars and __________ cents or $__________
Answer:
20 dollars + 10 dollars + 5 dollars + 1 quarter + 1 quarter = 35 dollars and 50 cents or $35.50

Question 27.

__________ dollars and __________ cents or $__________
Answer:
5 dollars + 1 dollar + 1 quarter = 6 dollars and 25 cents or $6.25

Question 28.

__________ dollars and __________ cents or $__________
Answer:
1 quarter + 1 quarter  + 5 cents + 10 cents + 10 cents = 0 dollars and 75 cents or $0.75

Question 29.

__________ dollars and __________ cents or $__________
Answer:
1 quarter + 1 quarter + 1 quarter + 10 cents + 10 cents + 5 cents = 1 dollars and 0 cents or $1.00

Question 30.

__________ dollars and __________ cents or $__________
Answer:
1 quarter + 1 quarter + 1 quarter + 1 quarter + 1 cent + 1 cent + 1 cent + 1 cent = 1 dollars and 4 cents or $1.04

Write the amount of money in two ways.

Example

Question 31.

____________¢ or $____________
Answer:
1 quarter + 1 quarter + 10 cents + 10 cents + 5 cents + 10 cents + 10 cents = 95 ¢ or $0.95

Question 32.

____________¢ or $____________
Answer:
1 dollar + 1 dollar + 1 dollar = 300 ¢ or $3.00

Question 33.

____________¢ or $____________
Answer:
1 dollar + 1 quarter + 1 quarter + 10 cents + 10 cents + 10 cents + 10 cents + 5 cents + 5 cents = 200 ¢ or $2.00

Write the amount of money in two ways.

Example

Question 34.

$___________ or ____________¢
Answer:
5 dollars + 1 dollar + 1 dollar + 1 dollar + 1 dollar + 10 cents + 5 cents = $9.15 or 915¢

Question 35.

$___________ or ____________¢
Answer:
5 dollars + 5 cents = $5.05 or 505¢

Question 36.

$___________ or ____________¢
Answer:
5 dollars + 1 dollar + 10 cents + 10 cents + 5 cents + 5 cents = $6.30 or 630¢

Write the cents in dollars and cents.

Example

Question 37.
120¢ ___________
Answer:
100 cents = 1 dollar
120 cents =1.20$

Question 38.
543¢ ____________
Answer:
100 cents = 1 dollar
543 cents = $5.43

Question 39.
106¢ _____________
Answer:
100 cents = 1 dollar
106 cents = $1.06

Question 40.
350¢ ____________
Answer:
1dollar = 100 cents
3 dollar = 300 cents
300cents + 50 cents = $3.50

Question 41.
83¢ ___________
Answer:
1 cent = 0.01 dollar
83 cents = $0.83

Question 42.
17¢ ____________
Answer:
1 cent = 0.01 dollar
17 cents = $0.17

Question 43.
2¢ ____________
Answer:
1 cent = 0.01 dollar
2 cents = $0.02

Write the dollars and cents in cents.

Example

Question 44.
$3.51 ____________
Answer:
1 dollar = 100 cents
3 dollar = 300 cents
300 cents = 51 cents = 351¢

Question 45.
$6.95 ____________
Answer:
1 dollar = 100 cents
6 dollars = 600 cents
600 cents + 95 cents = 695¢

Question 46.
$1.05 ____________
Answer:
1 dollar = 100 cents
$1.05 =105¢

Question 47.
$.44 ____________
Answer:
1 cent = 0.01 dollar
$.44 = 44¢

Question 48.
$.69 ____________
Answer:
1 cent = 0.01 dollar
69 cents = 0.69 cents = 69¢

Question 49.
$8 ____________
Answer:
1 dollar = 100 cents
8 dollar = 800¢

Question 50.
$7 ____________
Answer:
1 dollar = 100 cents
7 dollars = 700 cents
700¢

Go through the Math in Focus Grade 2 Workbook Answer Key Chapter 2 Practice 3 Addition with Regrouping in Ones to finish your assignments.

Math in Focus Grade 2 Chapter 2 Practice 3 Answer Key Addition with Regrouping in Ones

Add and regroup the ones.

Question 1.
778 + 119 = ?
Add and regroup the ones.
8 ones + 9 ones = 17 ones 8

= _________ ten _________ ones
Add the tens.
1 ten + 7 tens + 1 ten = _________ tens
Add the hundreds.
7 hundreds + 1 hundred = _________ hundreds
778 + 119 = ______
Answer:
17 ones = 1 ten 7 ones
Add the tens.
1 ten + 7 tens + 1 ten = 9 tens
Add the hundreds.
7 hundreds + 1 hundred = 8 hundreds
778 + 119 = 897

Question 2.

Answer:

Explanation:
8 ones and 3 ones = 11 ones =  1 ten 1 ones
Add the tens.
1 ten + 6 tens + 2 ten = 9 tens
Add the hundreds.
5 hundreds + 1 hundred = 6 hundreds
568 + 123 = 691

Question 3.

Answer:

Explanation:
8 ones + 5 ones  = 13 ones =  1 ten 3 ones
Add the tens.
1 ten + 3 tens + 5 ten = 9 tens
Add the hundreds.
6 hundreds + 1 hundred = 7 hundreds
638 + 155 = 793

Question 4.
576 + 207 = ___

Answer:

Explanation:
The sum of 576 + 207 = 783

Question 5.
631 + 329 = ___

Answer:

Explanation:
The sum of 631 + 329 = 960

Add.

An example is shown.

Question 6.

This sea creature is soft and a part of its name is a sweet treat. What is this creature? Write the letters that match the numbers.

Answer:


Explanation:
The sums form a word JELLY FISH

Go through the Math in Focus Grade 3 Workbook Answer Key Chapter 6 Practice 6 Division: Finding the Number of Items in Each Group to finish your assignments.

Math in Focus Grade 3 Chapter 6 Practice 6 Answer Key Multiply by 9

Write two related division sentences.

Example
6 × 7 = 42
42 ÷ 6 = 7
42 ÷ 7 = 6

Question 1.
9 × 5 = 45
45 ÷ ___ = ___
45 ÷ ___ = ___
Answer:
45 ÷9 = 5,
45 ÷5 = 9.

Explanation:
Given that 9 × 5 is 45,
45 ÷9 = 5 and
45 ÷5 = 9.

Question 2.
7 × 9 = 63
63 ÷ ___ = ___
63 ÷ ___ = ___
Answer:
63 ÷ 7 = 9,
63 ÷ 9 = 7.

Explanation:
Given that 7 × 9 is 63,
63 ÷ 7 = 9,
63 ÷ 9 = 7.

Question 3.
8 × 6 = 48
48 ÷ ___ = ___
48 ÷ ___ = ___
Answer:
48 ÷ 8 = 6,
48 ÷ 6 = 8.

Explanation:
Given that 8 × 6 is 48,
48 ÷ 8 = 6,
48 ÷ 6 = 8.

Fill in the missing numbers.

Example

6 × 7 = 42
So, 42 ÷ 6 = 7

Question 4.
7 × ___ = 49 So, 49 ÷ 7 = ____
Answer:
The missing number is 7.

Explanation:
Given that the division is 49 ÷ 7 which is 7,
So 7 × 7 is 49.

Question 5.
8 × ___ = 48 So, 48 ÷ 8 = ____
Answer:
The missing number is 6.

Explanation:
Given that the division is 48 ÷ 8 which is 6,
so 8 × 6 is 48.

Question 6.
9 × ___ = 45 So, 45 ÷ 9 = ____
Answer:
The missing number is 5.

Explanation:
Given that the division is 45 ÷ 9 is 5,
so 9 × 5 = 45.

Solve.

Question 7.
Mrs. Brown has 9 purses with 54 coins. Each purse has the same number of coins. How many coins does each purse have?
____ ÷ ___ = ____
Each purse has __________ coins.
Answer:
Each purse has 6 coins.

Explanation:
Given that Mrs. Brown has 9 purses with 54 coins and each purse has the same number of coins. So the number of coins does each purse has is 54÷9 which is 6 coins. So each purse has 6 coins.

Question 8.
Austin collects 63 seashells.
He puts them equally into 7 boxes.
How many seashells does each box contain?
____ ÷ ____ = ____

Each box contains ___________ seashells.
Answer:
Each box contains 9 seashells.

Explanation:
Given that Austin collects 63 seashells and he puts them equally into 7 boxes. So each box contains 63÷7 which is 9 seashells.

Practice the problems of Math in Focus Grade 3 Workbook Answer Key Chapter 9 Practice 3 Real-World Problems: Division to score better marks in the exam.

Math in Focus Grade 3 Chapter 9 Practice 3 Answer Key Real-World Problems: Division

Solve. Use bar models to help you.

May has 48 flowers.
She needs 4 flowers to make each centerpiece.
How many such centerpieces can she make?

Question 1.
Mr. Morton shares 75 marbles equally among 5 children. How many marbles does each child get?

_____ ÷ ____ = _____
Each child gets ____ marbles.
Answer:
75 ÷ 5 = 15
Each child gets 15 marbles
Explanation:
Mr. Morton shares 75 marbles equally among 5 children.
75 ÷ 5 = 15
15 marbles that each child get

Solve. Use bar models to help you.

Question 2.
Cally works 63 hours in 7 weeks. She works an equal number of hours per week. How many hours does she work per week?

She works ___ hours per week.
Answer:

She works 9 hours per week.
Explanation:
Cally works 63 hours in 7 weeks.
She works an equal number of hours per week.
63 ÷  7 = 9
9 hours that she work per week

Question 3.
Each shirt has 8 buttons. There are 72 buttons in all. How many shirts are there?

There are ___ shirts.
Answer:

There are 9 shirts.
Explanation:
Each shirt has 8 buttons.
There are 72 buttons in all.
72 ÷ 8 = 9
9 shirts are there

Solve. Use bar models to help you.

Example

Tina gives $85 to Aiden and Nick. Aiden gets 4 times as much money as Nick. How much does Nick get?

Question 4.
Auntie Agnes makes 24 hot dogs. She puts them on a round tray and a square tray. Twice as many hot dogs are on the square tray as on the round tray. How many more hot dogs are there on the square tray than on the round tray?

There are __________ more hot dogs on the square tray.
Answer:

There are 12 more hot dogs on the square tray.
Explanation:
Auntie Agnes makes 24 hot dogs.
She puts them on a round tray and a square tray.
Twice as many hot dogs are on the square tray as on the round tray.
24 ÷ 2 = 12
12 more hot dogs are there on the square tray than on the round tray

Solve. Draw bar models to help you.

Question 5.
Elena takes 80 photos on her vacation. She takes 4 times as many photos as Luke. How many photos does Luke take?
Answer:
20 photos
Explanation:
Elena takes 80 photos on her vacation.
She takes 4 times as many photos as Luke.
80 ÷  4 = 20
20 photos that Luke take

Question 6.
Mr. King picked 54 peaches from his orchard. He picked 9 times as many peaches as Mr. Tang. How many peaches did Mr. Tang pick?
Answer:
6 peaches
Explanation:
Mr. King picked 54 peaches from his orchard.
He picked 9 times as many peaches as Mr. Tang.
54 ÷  9 = 6
6 peaches that Mr. Tang pick.

Practice the problems of Math in Focus Grade 3 Workbook Answer Key Chapter 9 Practice 4 Real-World Problems: Two-step Problems with Division to score better marks in the exam.

Math in Focus Grade 3 Chapter 9 Practice 4 Answer Key Real-World Problems: Two-step Problems with Division

Solve. Use bar models to help you.

Example
Katie bakes 56 pineapple tarts. She packs 20 pineapple tarts into a plastic container. The remaining tarts are packed equally into 6 boxes.
a. How many pineapple tarts are packed into boxes?

36 pineapple tarts are packed into boxes.

b. How many pineapple tarts are in each box?

There are 6 pineapple tarts in each box.

Solve. Use bar models to help you.

Question 1.
A fruit seller has 64 oranges in some bags. Each bag has 8 oranges. She sells the oranges for $2 per bag. How much does she sell all the oranges for?

She sells all the oranges for $________
Answer:
She sells all the oranges for $16

Explanation:
to find orange bags did 64 ÷ 8 =8
then 8 x $2 = $16

Solve. Draw bar models to help you.

Question 2.
Lance and Alex have 70 pencils. Lance has 4 times as many pencils as Alex. Alex’s pencils are shared equally among 2 children. How many pencils does each child get?

Answer:
Each child get 7 pencils

Explanation:

Question 3.
Richard has 90 pennies. He keeps 10 pennies and divides the rest of the pennies equally among his 4 sisters. How many pennies does each sister get?

Answer:
Each sister will get 20 pennies


Explanation:
Richard has 90 pennies. He keeps 10 pennies. So Remaining is 90 – 10 =80 pennies
divides the rest of the pennies equally among his 4 sisters  So 80 ÷ 4 = 20

Solve. Draw bar models to help you.

Question 4.
A baker makes 32 rolls in the morning. He makes 64 rolls in the afternoon. He packs all the rolls equally into 4 boxes. How many rolls does each box have?
Answer:
Each box have 24 rolls

Explanation:
A baker makes 32 rolls in the morning. He makes 64 rolls in the afternoon.
So Total rolls are 64 + 32 = 96
He packs all the rolls equally into 4 boxes. So each box will get
96 ÷ 4 = 24

Question 5.
Marcus collects 14 stamps each month. Wayne collects 19 stamps each month. How many months does Wayne take to collect 65 stamps more than Marcus?
Answer:
13 more moths wayne take to collect 65 stamps more than marcus.

Explanation:

19 – 4 = 5. So Wayne 5 stamps more collect each month.
to collect 65 stamps, 65 ÷ 5 = 13 moths take.

Go through the Math in Focus Grade 4 Workbook Answer Key Chapter 4 Practice 3 Line Graphs to finish your assignments.

Math in Focus Grade 4 Chapter 4 Practice 3 Answer Key Line Graphs

Use the data in the line graphs to answer each question.
The line graph shows the change in Rodney’s weight over a few years.

Example
What was Rodney’s weight in the second year?
87.5 lb
In which year was the increase in Rodney’s weight the greatest? Between the first anti second year

Question 1.
What was Rodney’s weight in the
a. fourth year? ___
Answer:
95 lb.

Explanation:
Rodney’s weight in the fourth year is 95 lb.

b. fifth year? ___
Answer:
97.5 lb.

Explanation:
Rodney’s weight in the fifth year is 97.5 lb.

c. What was the increase in Rodney’s weight between these two years? ____
Answer:

Question 2.
In which year was the increase in Rodney’s weight 5 lb?
Answer:
3rd year.

Explanation:
In the 3rd year, the increase in Rodney’s weight was 5 lb which is from 87.5 lb to 92.5 lb.

The line graph shows the temperature of an object being heated over five hours.

Question 3.
What was the temperature of the object in the second hour? ___
Answer:
180°F.

Explanation:
The temperature of the object in the second hour is 180°F.

Question 4.
What was the temperature of the object in the fourth hour? ____
Answer:
260°F.

Explanation:
The temperature of the object in the fourth hour is 260°F.

Question 5.
What was the increase in temperature between the second hour and the fourth hour? ____
Answer:
80°F.

Explanation:
The increase in temperature between the second hour and the fourth hour will be 260°F.-180°F. which is 80°F.

Use the data from the graph to complete the table.

Question 6.

Answer:

Question 7.
Did the temperature increase by the same amount every hour?
Answer:
Yes.

Explanation:
Yes, the temperature increase by the same amount every hour.

The line graph shows the change in height while Ali was climbing a mountain.

Question 8.
At what time was Ali at a height of 200 meters? ____
Answer:
9 A.M.

Explanation:
At 9 A.M. was Ali at a height of 200 meters.

Question 9.
At what height was Ali at 2 P.M.? ____
Answer:
900 meters.

Explanation:
At 2 P.M. Ali’s height is 900 meters.

Question 10.
During which hour was the increase in height the greatest? ____
Answer:
12 P.M. and 1 P.M.

Explanation:
At 12 P.M. and 1 P.M. hours the increase in height the greatest.

Question 11.
When did Ali take a break from climbing? ____
Answer:
12 P.M.

Explanation:
At 12 P.M. Ali took a break from climbing.

Question 12.
Explain what happened from 1 P.M. to 2 P.M.
Answer:
Height was decreasing.

Explanation:
From 1 P.M. to 2 P.M. the height was decreasing from 1,200 meters to 900 meters.

Choose an appropriate graph to display the data. Write bar graph, line graph, or picture graph. Explain your choice.

Question 13.
Anna recorded the rainfall amounts (in centimeters) in each month from January to June.
Answer:

Question 14.
Jim organized a party for 20 of his friends. He recorded the number of friends who liked each flavor of ice-cream — vanilla, strawberry, and chocolate. 4 friends liked vanilla ice-cream, 8 friends liked strawberry ice-cream, and 8 friends liked chocolate ice-cream.
Answer:

Question 15.
Temperature change of water (in °F) when it is heated over 20 minutes.
Answer:

Question 16.
Level of water remaining in a leaking tank recorded over four hours.
Answer:

Go through the Math in Focus Grade 4 Workbook Answer Key Chapter 4 Tables and Line Graphs to finish your assignments.

Math in Focus Grade 4 Chapter 4 Answer Key Tables and Line Graphs

Math Journal

Michael bought a new car in 2001 for $24,000. The line graph shows how the value of his car changed from 2001 to 2005.

Write four questions that can be answered using the data in the line graph. Then write the answers.

a. Question
_____________
_____________
Answer
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Answer:

b. Question
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Answer
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Answer:

c. Question
_____________
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Answer
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Answer:

d. Question
_____________
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Answer
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Answer:

Put on Your Thinking cap!

Challenging Practice

Look at the line graph.

Question 1.
Suggest what data this graph could be showing.
Answer:

Question 2.
Create a title, scale and labels for the graph. Show these on the graph.
Answer:

Question 3.
Why do you think the line is horizontal from point 3 to point 4?
Answer:

Put on Your Thinking Cap!

Problem Solving

The graph shows the number of guppies in a tank over a few months.

Question 1.
During which 1 -month interval was the increase in the number of guppies the greatest?
Answer:

Question 2.
How many guppies were moved to another tank between the fourth and the fifth month ?
Answer:

Question 3.
How many guppies were added to the tank in the second month?
Answer:

Question 4.
Why is the line horizontal from the third to the fourth month?
Answer: