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Estimate the sum. Round each number to the nearest whole number, then add. $\newline$ $2\frac{9}{13}$ $+$ $6\frac{14}{15}$ $\newline$ 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

2\frac{9}{13}

+

6\frac{14}{15}

\newline

The sum is approximately _____.

Round Numbers: Step $1$ : Round each number to the nearest whole number. $\newline$ $2 \frac{9}{13}$ rounds to $3$ because $\frac{9}{13}$ is closer to $1$ than to $0$ . $\newline$ $6 \frac{14}{15}$ rounds to $7$ because $\frac{14}{15}$ is very close to $1$ .
Add Rounded Numbers: Step $2$ : Add the rounded numbers. $3 + 7 = 10$

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