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## McGraw-Hill Math Grade 3 Answer Key Chapter 4 Lesson 2 Multiplying by 2

**Solve**

**Multiply. Write the product.**

Question 1.

3 × 2 = __6
__Answer:

__Number of balls in all = 3 × 2 = 6.__

Explanation:

Number of balls in rows = 3.

Number of balls in columns = 2.

Number of balls in all = Number of balls in rows × Number of balls in columns

= 3 × 2

= 6.

Question 2.

2 × 2 = ____

Answer:

Number of books in all = 4.

Explanation:

Number of books in rows = 2.

Number of books in columns = 2.

Number of books in all = Number of books in rows × Number of books in columns

= 2 × 2

= 4.

Question 3.

There are 6 rabbits. How many ears do the rabbits have in all?

Hint. .. How many ears does 1 rabbit have?

There are 6 groups of ___.

____ × ________ = ___ ears

Answer:

Number of ears the rabbits have in all = 12.

Explanation:

Number of rabbits = 6.

Number of ears one rabbit has = 2.

Number of ears the rabbits have in all = Number of rabbits × Number of ears one rabbit has

= 6 × 2

= 12.