Question

Cynthia was asked to subtract 0.223 from 0.54. Which of the following is the best estimate that Cynthia can make to check her answer?

A. 0.4 − 0.2
B. 0.5 − 0.2
C. 0.5 − 0.1
D. 0.6 − 0.2

Answer 1

b

Explanation:

0.223 rounds to 0.2 and 0.54 rounds to 0.5 so 0.5-0.2