This handy Math in Focus Grade 2 Workbook Answer Key Chapter 15 Practice 2 Multiplying 3: Using Dot Paper detailed solutions for the textbook questions.

## Math in Focus Grade 2 Chapter 15 Practice 2 Answer Key Multiplying 3: Using Dot Paper

**Use dot paper to solve.**

**Example**

Sally buys 4 lanterns. Each lantern costs $3. How much does Sally pay for the lanterns?

Question 1.

Nicole buys 6 soup bowls. Each soup bowl costs $3. How much does she pay for all the soup bowls?

___________ × $3 = $___________

She pays $__________ for all the soup bowls.

Answer:

6 x $3 = $18

She pays $18 for all the soup bowls.

**Use dot paper to solve.**

Question 2.

There are 7 tricycles. Each tricycle has 3 wheels. How many wheels are there in all?

___________ × ___________ = ___________

There are ___________ wheels in all.

Answer:

7 x 3 = 21

There are 21 wheels in all.

Question 3.

There are 8 groups of children in the class. There are 3 children in each group. How many children are there in the class?

___________ × ___________ = ___________

There are ___________ children in the class.

Answer:

8 x 3 = 24

There are 24 children in the class.

**Use dot paper to help you fill in the blanks.**

**Example**

Question 4.

5 × 3 = ____________

7 × 3 = 5 groups of 3 + __________ groups of 3

= __________ + ___________

= ___________

Answer:

5 × 3 = 15

7 × 3 = 5 groups of 3 + 2 groups of 3

= 15 + 6

= 21.

**Use dot paper to help you fill in the blanks.**

Question 5.

10 × 3 = ____________

9 × 3 = 10 groups of 3 – __________ groups of 3

= __________ – ___________

= ___________

Answer:

10 × 3 = 30

9 × 3 = 10 groups of 3 – 1 groups of 3

= 30 – 3

= 27.

Question 6.

10 × 3 = ____________

8 × 3 = 10 groups of 3 – __________ groups of 3

= __________ – ___________

= ___________

Answer:

10 × 3 = 30

8 × 3 = 10 groups of 3 – 2 groups of 3

= 30 – 6

= 24.

**Use dot paper to help you fill in the blanks.**

**Example**

Question 7.

___________ × 3 = 18

3 × __________ = 18

Answer:

6 x 3 = 18

3 x 6 = 18.

Question 8.

___________ × 3 = 21

3 × __________ = 21

Answer:

7 x 3 = 21

3 x 7 = 21

Question 9.

8 × 3 = __________

3 × 8 = __________

Answer:

8 x 3 = 24

3 x 8 = 24

Question 10.

___________ × 3 = 27

3 × __________ = 27

Answer:

9 x 3 = 27

3 x 9 = 27.