Question

Ms. Swanson asked the question, "How does knowing the fact 6 × 5 6×5 help you find 60 × 500 60×500?" Maria answered, "I know 6 × 5 6×5 is 30 30. Now all I have to do is count the zeros and I get 3 , 000 3,000." Use place value understanding to explain why her answer is incorrect.

Answer 1

Correct answer is 30,000

Explanation:

From multiplication :

6 * 5 = 30

Now moving to:

60 * 500

Number of ending zeros in both values = 3 ; (000)

This 3 0's will be placed at the end of the result of multiplying 6 by 5

Hence,

6 * 5 = 30

60 * 500 = 30+000 = 30,000

Hence, 60 * 500 = 30000