Estimate the sum by rounding addends to whole numbers. Then use a calculator to find the exact sum: $45.22, $39.99, $4.15, $95.66 and $101.02.
A) $294; $286.04
B)$286; $286.04
C) $264; $286.04
D)$294; $2324.72

Question

Quizplus · Accepted Answer

Rounding the addends to the nearest whole number, we get $45, $40, $4, $96 and $101.
The estimated sum is $286.
Using a calculator, the exact sum is $286.02. 
Therefore, the best choice(s) is B because it gives both the estimated and exact sum correctly.

Estimate the Sum by Rounding Addends to Whole Numbers