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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.