Practice the problems of Math in Focus Grade 2 Workbook Answer Key Cumulative Review Chapters 5 and 6 to score better marks in the exam.

## Math in Focus Grade 2 Cumulative Review Chapters 5 and 6 Answer Key

**Concepts and Skills**

**Draw **

Question 1.

Draw 4 groups of 3

________________

Answer:

Question 2.

Draw 3 groups of 4

_________________

Answer:

**Find the missing numbers.**

Question 3.

2 + 2 + 2 + 2 + 2 + 2 = ___ × 2

Answer:

2 + 2 + 2 + 2 + 2 + 2 = 12

6 × 2 = 12

Question 4.

3 + 3 + 3 + 3 + 3 is ___ groups of ____

Answer:

3 + 3 + 3 + 3 + 3 = 15

3 x 5 = 15

5 groups of 3

Question 5.

Answer:

3 × 4 = 12

12 ÷ 4 = 3

Explanation:

By multiplying 3 with 4 we get 12,

By dividing 12 with 4 we get 3.

Question 6.

Answer:

24 ÷ 3 = 8

24 ÷ 8 – 3

Explanation:

By dividing 24 with 3 we get 8,

By dividing 24 with 8 we get 3,

Even after changing the addends we get the sum as same.

**Find the missing numbers.**

Question 7.

Divide 20 socks so there are 5 socks in each group.

Subtract groups of 5 until there is nothing left.

20 – _____ – _____ – _____ – _____ = ______

Groups of five are subtracted ___ times.

20 ÷ 5 = ___

Answer:

Subtract groups of 5 until there is nothing left.

20 – 5 – 5 – 5 – 5 = 0

Groups of five are subtracted 4 times.

**Cross out what does not belong.**

Question 8.

Answer:

Explanation:

By adding 7 groups of 5 we get 35.

Question 9.

Answer:

Explanation:

By subtracting 3 groups of 2 from 6 we get 0.

**Fill in the blanks.**

Question 10.

Divide 16 fruit bars equally on 4 trays.

16 ÷ ___ = ____

There are ___ fruit bars on each tray.

Answer:

16 ÷ 4 = 4

Explanation:

By dividing 16 fruit bars on 4 trays,

There are 4 fruit bars on each tray.

Question 6.

6 bugs are on each of the 3 branches

6 × ___ = ___

There are ___ fruit bars on each tray.

Answer: 6 × 3 = 18

Explanation:

There are 6 bugs on each of the 3 branches,

By multiplying 6 with 3 we get 18,

Therefore, there are 18 fruit bars on each tray.

Question 12.

Divide 20 crayons equally among 5 children.

20 ÷ ___ = ____

Each child gets ___ crayons.

Answer:

20 ÷ 5 = 4

Explanaton:

By dividing 20 crayons among 5 children,

Therefore, each child gets 4 crayons.

**Skip-count.**

Question 13.

2, 4, 6, ___, ___, ___, ___, ___, ____, ____

Answer: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

Need to add 2 to each number

Question 14.

5, 10, 15, ___, ___, ___, ___, ___, ____, ____

Answer: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50

Need to add 5 to each number.

Question 15.

10, 20, 30, ___, ___, ___, ___, ___, ____, ____

Answer: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100

Need to add 10 to each number.

**Fill in the blanks.**

Question 16.

2 groups of 2 = ___ × ____ = _____

Answer: 2 × 2 = 4

Question 17.

5 groups of 2 = ___ × ____ = _____

Answer: 5 × 2 = 10

Question 18.

6 groups of 5 = __ × ___ = _____

Answer: 6 × 5 = 30

Question 19.

7 groups of 5 = __ × ___ = ____

Answer: 7 × 5 = 35

**Use the dot paper to find the missing numbers.**

Question 20.

Answer:

Explanation:

By multiplying 6 with 2 we get 12,

By multiplying 2 with 6 we get 12,

By changing the addends we get the same sum.

Question 21.

Answer:

Explanation:

By multiplying 4 with 5 we get 20,

By multiplying 5 with 4 we get 20,

By changing the addends we get the same sum.

**Complete the multiplication sentences.**

Question 22.

4 × 2 = ___

2 × 4 = ___

Answer:

4 × 2 = 8

2 × 4 = 8

Explanation:

By multiplying 4 with 2 we get 8,

By multiplying 2 with 4 we get 8,

By changing the addends we get the same sum.

Question 23.

7 × 2 = ___

2 × 7 = ____

Answer:

7 × 2 = 14

2 × 7 = 14

Explanation:

By multiplying 7 with 2 we get 14,

By multiplying 2 with 7 we get 14,

By changing the addends we get the same sum.

Question 24.

3 × 5 = ___

5 × 3 = ___

Answer:

3 × 5 = 15

5 × 3 = 15

By multiplying 3 with 5 we get 15,

By multiplying 5 with 3 we get 15,

By changing the addends we get the same sum.

Question 25.

9 × 5 = ___

5 × 9 = ___

Answer:

9 × 5 = 45

5 × 9 = 45

Explanation:

By multiplying 9 with 5 we get 45,

By multiplying 5 with 9 we get 45,

By changing the addends we get the same sum.

Question 26.

4 × 10 = ___

10 × 4 = ___

Answer:

4 × 10 = 40

10 × 4 = 40

Explanation:

By multiplying 4 with 10 we get 40,

By multiplying 10 with 4 we get 40,

By changing the addends we get the same sum.

Question 27.

6 × 10 = ___

10 × 6 = ___

Answer:

6 × 10 = 60

10 × 6 = 60

Explanation:

By multiplying 6 with 10 we get 60,

By multiplying 10 with 6 we get 60,

By changing the addends we get the same sum.

**Fill in the blanks.**

Question 28.

___ × 2 = 16

Answer: 8 × 2 = 16

Question 29.

___ × 2 = 18

Answer: 9 × 2 = 18

Question 30.

____ × 5 = 40

Answer: 8 × 5 = 40

Question 31.

___ × 5 = 25

Answer: 5 × 5 = 25

Question 32.

____ × 10 = 70

Answer: 7 × 10 = 70

Question 33.

___ × 10 = 50

Answer: 5 × 10 = 50

**Complete the multiplication sentences.**

Question 34.

___ × 2 = 10 10 ÷ 2 = ____

Answer: 5 × 2 = 10 10 ÷ 2 = 5

Question 35.

___ × 5 = 10 30 ÷ 5 = ____

Answer: 2 × 5 = 10 30 ÷ 5 = 6

Question 36.

___ × 10 = 20 20 ÷ 10 = ____

Answer: 2 × 10 = 20 20 ÷ 10 = 2

**Problem Solving**

**Solve.**

Question 37.

A grocer sells 5 oranges in a bag. Mr. Diaz buys 6 bags of oranges. How many oranges does he buy in all? He buys oranges in all.

He buys ____ oranges in all.

Answer: He buys 30 oranges in all.

Explanation:

Given,

A grocer sells 5 oranges in a bag,

Mr. Diaz buys 6 bags of oranges,

By multiplying 5 with 6 we get 30,

Therefore, he buys 30 oranges.

Question 38.

Shauna puts some chairs in rows of 9. There are 2 rows of chairs. How many chairs are there?

There are ___ chairs.

Answer: There are 18 chairs.

Explanation:

Given,

Shauna puts some chairs in rows of 9,

There are 2 rows of chairs,

By multiplying 9 with 2 we get 18,

Therefore, there are 18 chairs.

Question 39.

Ling’s Travel has 10 new alarm clocks. Each clock needs 4- batteries. How many batteries are needed in all?

____ batteries are needed in all.

Answer: 40 batteries are needed in all.

Explanation:

Given,

Ling’s Travel has 10 new alarm clocks,

Each clock needs 4 batteries,

By mutliplying 10 with 4 we get 40,

Therefore, 40 batteries are needed for all 10 alarm clocks

Question 40.

There are 18 seashells. They are divided into 2 equal groups. How many seashells are in each group?

___ seashells are in each group.

Answer: 9 seashells are in each group.

Explanation:

Given,

There are 18 seashells,

They are divided into 2 equal groups,

By dividing 18 with 2 we get 9,

Therefore, each group gets 9 seashells.

Question 41.

Mr. Jenkins spends $30 on books. Each book costs $10. How many books does Mr. Jenkins buy?

Mr. Jenkins buys ___ books.

Answer: Mr. Jenkin buys 3 books.

Explanation:

Given,

Mr. Jenkins spends $30 on books,

Each book costs $10,

By dividing 30 with 10 we get 3,

Therefore, Mr. Jenkin buys 3 books.

Question 42.

The school chef has 30 mini pizzas. She divides them equally among a few children.

a. If each child gets 5 mini pizzas, how many children are there?

b. If there are 10 children, how many mini pizzas will each child get?

a. There are ___ children.

Answer: There are 6 children

Explanation:

Given,

There are 30 mini pizzas,

Each child gets 5 mini pizzas,

By dividing 30 with 5 we get 6,

Therefore, there are 6 children and each child gets 5 mini pizzas.

b. Each child will get ___ mini pizzas.

Answer: Each child will get 3 mini pizzas.

Explanation:

Given,

There are 30 mini pizzas,

There are 10 children,

By dividing 30 with 10 we get 3,

Therefore, each child will get 3 mini pizzas.