Question

Mary multiplied 425.32 by 981.21 and got an answer of 41,732,823.72.

Use estimation to see if her answer is reasonable.

A. No, the answer is about 400,000,000

B. No the answer is about 4,000,000

C. No, the answer is about 400,000

D. No, the answer is about 40,000

(Show your work here.)

Answer 1

Answer C
when you multiple 425.32 and 981.21 you get 417,328.237 so the answer would be “about”400,000.