Question

Sela estimated the sum of 76.6, 25.5, and 10.87 by rounding each number to the nearest whole.

What was Sela's estimate and what is the actual sum of the numbers?
Enter your answers in the boxes.
Sela estimated the sum to be_____
the actual sum is____
Please help ASAP

Answer 1

I'm not sure if this is right...

Estimated the sum to be 102.97

The actual sum is 100.90

Not sure if its right.

Answer 2

Sela estimated the sum to be 114; the actual sum is 112.97.

Explanation:

Let's find the rounded sum and the actual sum, as follows:

Rounding each number to the nearest whole:

76.6 ⇒ 77

25.5 ⇒ 26

10.87 ⇒ 11

Sum = 77 + 26 + 11

Sum = 114

Actual sum:

Actual sum = 76.6 + 25.5 + 10.87

Actual sum = 112.97

Sela estimated the sum to be 114; the actual sum is 112.97.