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Estimate the sum. Round each number to the nearest whole number, then add. $\newline$ $8\frac{3}{8} + 11\frac{1}{6}$ $\newline$ The sum is approximately $\_\_$ .

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Estimate sums and differences of mixed numbers

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Q. Estimate the sum. Round each number to the nearest whole number, then add.

\newline

8\frac{3}{8} + 11\frac{1}{6}

\newline

The sum is approximately

\_\_

.

Round Numbers: Step $1$ : Round each number to the nearest whole number. $\newline$ $8 \frac{3}{8}$ rounds to $8$ because $\frac{3}{8}$ is less than half. $\newline$ $11 \frac{1}{6}$ rounds to $11$ because $\frac{1}{6}$ is less than half.
Add Rounded Numbers: Step $2$ : Add the rounded numbers. $\newline$ $8 + 11 = 19$

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