Question

Which of the following uses estimation to check 267 - 154 = 113

A. 300 - 150 = 150

B. 300 - 200 = 100

C. 270 - 150 = 267

D. 113 + 154 = 267

Answer 1

Answer: it is the third but there is a typo. It is C. 267 - 150 = 117

Step-by-step explanation:

You can do that estimation searching to make a quick verification, because adding rounding 154 to the tens leads to 150 and it is very easy to subtract 267 - 150 instead of 267 - 154, driving to a quick approximate check of the subtraction.