Estimate the difference. Round each number to the nearest whole number, then subtract. 20 13/18 – 17 3/4 The difference is approximately _____.

Round to Nearest Whole Number: Step 1: Round 20 13/18 to the nearest whole number. 20 13/18 is closer to 21 than to 20 because 13/18 is more than half. Rounded value = 21 Subtract Rounded Values: Step 2: Round 17 3/4 to the nearest whole number. 17 3/4 is closer to 18 than to 17 because 3/4 is more than half. Rounded value = 18 Calculate Difference: Step 3: Subtract the rounded values. 21 - 18 = 3 Difference = 3

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Estimate the difference. Round each number to the nearest whole number, then subtract. $\newline$ 20 \frac{13}{18} $–$ 17 \frac{3}{4} $\newline$ The difference is approximately $\underline{\hspace{3em}}$ .

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Math Problems

Grade 6

Estimate sums and differences of mixed numbers

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Q. Estimate the difference. Round each number to the nearest whole number, then subtract.

\newline

20 \frac{13}{18}

–

17 \frac{3}{4}

\newline

The difference is approximately

\underline{\hspace{3em}}

Round to Nearest Whole Number: Step $1$ : Round $20\frac{13}{18}$ to the nearest whole number. $\newline$ $20\frac{13}{18}$ is closer to $21$ than to $20$ because $\frac{13}{18}$ is more than half. $\newline$ Rounded value = $21$
Subtract Rounded Values: Step $2$ : Round $17 \frac{3}{4}$ to the nearest whole number. $\newline$ $17 \frac{3}{4}$ is closer to $18$ than to $17$ because $\frac{3}{4}$ is more than half. $\newline$ Rounded value = $18$
Calculate Difference: Step $3$ : Subtract the rounded values. $\newline$ $21 - 18 = 3$ $\newline$ Difference = $3$