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Estimate the sum. Round each number to the nearest whole number, then add. $\newline$ $2\frac{5}{11}$ $+$ $2\frac{6}{7}$ $\newline$ The sum is approximately $\underline{\hspace{3em}}$ .

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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

2\frac{5}{11}

+

2\frac{6}{7}

\newline

The sum is approximately

\underline{\hspace{3em}}

.

Round Numbers: Step $1$ : Round each number to the nearest whole number. $\newline$ $2 \frac{5}{11}$ rounds to $2$ because $\frac{5}{11}$ is less than half. $\newline$ $2 \frac{6}{7}$ rounds to $3$ because $\frac{6}{7}$ is more than half.
Add Rounded Numbers: Step $2$ : Add the rounded numbers. $2$ (rounded from $2 \frac{5}{11}$ ) + $3$ (rounded from $2 \frac{6}{7}$ ) = $5$

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