Question

Part A

Estimate the product 65 × 1.85 by rounding the decimal to its nearest whole number, then multiply.
Choose the correct option:

A.130
B.140
C.120
D.60

Answer 1

The answer is A. It is this because I rounded 1.85 to 2. Then I multiplied 2 by 65, and I got 130.

Answer 2

Answer: option C is correct

Explanation:

This means the multiplication of 65 and 1.85 is 120.25

The whole number is 120 while the decimal is 0.25

Rounding off to the nearest whole number equals removing the decimal as the decimal is not up to 0.5, thus, we round down to 120.

I hope it helps.