# Math in Focus Grade 1 Cumulative Review for Chapters 18 and 19 Answer Key

Go through the Math in Focus Grade 1 Workbook Answer Key Cumulative Review for Chapters 18 and 19 to finish your assignments.

## Math in Focus Grade 1 Cumulative Review for Chapters 18 and 19 Answer Key

Concepts and Skills

Count the number of groups. Count the number in each group. Then fill in the blanks.

Question 1.

6 + 6 + 6 + 6 = ___________
4 sixes = ___________
There are __________ starfishes in all.
6 + 6 + 6 + 6 = 24
4 sixes = 24
There are 24 starfishes in all.
Explanation:
Count the number of groups.
Then count the number of star fish in each group.
4 x 6 = 24

Question 2.

4 + 4 + 4 + 4 = ___________
4 fours = ___________
There are ___________ shrimps in all.
4 + 4 + 4 + 4 = 16
4 fours = 16
There are 16 shrimps in all
Explanation:
Count the number of groups.
Then count the number of shrimps in each group.
4 x 4 = 16

Look at the pictures. Then fill in the blanks.

Question 3.

___________ + ___________ + ___________ + ___________ = ___________
___________ fives = ___________
5 + 5 + 5 + 5 = 20
4 fives = 20
There are 20 cherries in all
Explanation:
Count the number of groups.
Then count the number of shrimps in each group.
4 x 4 = 16

Question 4.

There are ___________ pineapple cubes in all.
There are _________ sticks.
There are ___________ pineapple cubes in each stick.
There are 18 pineapple cubes in all.
There are 6 sticks.
There are 3 pineapple cubes in each stick.
Explanation:
Count the number of sticks.
Then count the number of pineapples in each stick.
3 x 6 = 18

Solve.

Question 5.
There are 12 sandwiches. They are shared equally by 3 children.

Each child gets ___________ sandwiches.
Each child gets 4 sandwiches.
Explanation:

There are 12 sandwiches.
They are shared equally by 3 children.
4+4+4 = 12
3 x 4 = 12

Solve.

Question 6.
There are 16 toy soldiers. Jamal packs them equally into 4 boxes.

There are ___________ toy soldiers in each box.
There are 4 toy soldiers in each box.

Explanation:
There are 16 toy soldiers.
Jamal packs them equally into 4 boxes
4+4+4+4 = 16
4 x 4 = 16

Question 7.
Timmy puts 6 pillows equally into 3 groups.

Each group has ____________ pillows.
Each group has 2 pillows

Explanation:
Timmy puts 6 pillows equally into 3 groups.
Count the number of groups.
Then count the number of shrimps in each group.
3 x 2 = 6

Question 8.
There are 9 oranges. Circle groups of 3.

There are ____________ groups of 3.
There are 3 groups of 3.

Explanation:
Count the number of groups.
Then count the number of shrimps in each group.
3 x 3 = 9

Look at the pictures. Then fill in the blanks.

Maria has 12 flowers.

Question 9.
She puts the flowers equally into 3 vases. There are flowers ____________ in each vase.
There are flowers 4 in each vase.

Explanation:
Count the number of groups.
Then count the number of shrimps in each group.
3 x 4 = 12

Question 10.
She puts 2 flowers in each vase. She needs ____________ vases.
She needs 6 vases.

Explanation:
Count the number of groups.
Then count the number of shrimps in each group.
6 x 2 = 12

Question 11.
She puts 4 flowers in each vase. She needs ____________ vases.
She needs 3 vases.

Explanation:
Count the number of groups.
Then count the number of shrimps in each group.
3 x 4 = 12

Write the value.

Question 12.

Explanation:
1 nickel = 5¢

Question 13.

3 dimes = 30¢
Explanation:
1 dime = 10¢
3 dimes = 10¢ + 10¢ + 10¢ = 30¢

Fill in the blanks.

Question 14.
Find how many of each coin are needed.

__________ dimes _________ nickels _________ pennies
2 dimes + 1 nickel + 2 pennies.
Explanation:
1 dime = 10¢
1 nickel = 5¢
1 penny = 1¢
2 dimes + 1 nickel + 2 pennies
20¢ + 5¢ + 2¢ = 17¢

Question 15.

5 nickels
Explanation:
1 quarter = 25¢
1 nickel = 5¢
1 quarter = 5 nickels.

Circle the coins to show the same value.

Question 16.

Explanation:
1 quarter = 2 dimes + 1 nickel
1 quarter = 25¢
1 dime = 10¢
1 nickel = 5¢

Circle the coins that are not dimes.

Question 17.

Explanation:
3 coins belongs to dimes,
rest of the coins are quarters, nickels and pennies.

Count on to find the value.

Question 18.

Explanation:
2 quarters + 3 dimes + 1 penny = 81¢
1 quarter = 25¢
1 dime = 10¢
1 penny = 1¢

Question 19.

25¢ + 17¢ = ____________ ¢
Explanation:
1 quarter + 1 dime + 1 nickel + 2 pennies
1 quarter = 25¢
1 dime = 10¢
1 nickel = 5¢
1 penny = 1¢
25¢ + 10¢ + 5¢ + 2¢ = 42¢

Complete.

Question 20.

45¢ – 15¢ = ____________ ¢
Explanation:
1 quarter = 25¢
1 dimes = 10¢
1 nickel = 5¢
(1 quarter + 2 dimes) – (1 dime + 1 nickel)
= (25 + 20) – (10 + 5)
= 45 – 15 = 30

Question 21.
Subtract 18¢ from 90¢
__________ – _________ = _________ ¢
Explanation:
Subtract small number form big number
90¢ – 18¢ = 72¢

Problem Solving

Solve.

Question 22.
Draw the least number of coins needed to make 64¢.