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Estimate the sum by rounding each number to the nearest whole number and then adding.7.823 + 3.177 + 7.96

Question

Estimate the sum by rounding each number to the nearest whole number and then adding.7.823 + 3.177 + 7.96

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Solution

Step 1: Round each number to the nearest whole number.

7.823 rounds to 8 because .823 is closer to 1 than it is to 0. 3.177 rounds to 3 because .177 is closer to 0 than it is to 1. 7.96 rounds to 8 because .96 is closer to 1 than it is to 0.

Step 2: Add the rounded numbers together.

8 (rounded from 7.823) + 3 (rounded from 3.177) + 8 (rounded from 7.96) equals 19.

So, the estimated sum of 7.823, 3.177, and 7.96, when each number is rounded to the nearest whole number, is 19.

This problem has been solved

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