Estimate the difference. Round each number to the nearest whole number, then subtract. $\newline$ $8 \frac{9}{20}$ $-$ $6 \frac{8}{9}$ $\newline$ The difference is approximately $\underline{\hspace{3em}}$ .

Full solution

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

\newline

8 \frac{9}{20}

-

6 \frac{8}{9}

\newline

The difference is approximately

\underline{\hspace{3em}}

Round to Nearest Whole Number: Step $1$ : Round $8\frac{9}{20}$ to the nearest whole number. $\newline$ $8\frac{9}{20}$ is closer to $8$ than to $9$ because $\frac{9}{20}$ is less than $\frac{1}{2}$ . $\newline$ Rounded value = $8$
Subtract Rounded Values: Step $2$ : Round $6\frac{8}{9}$ to the nearest whole number. $\newline$ $6\frac{8}{9}$ is closer to $7$ than to $6$ because $\frac{8}{9}$ is more than $\frac{1}{2}$ . $\newline$ Rounded value = $7$
Calculate Difference: Step $3$ : Subtract the rounded values. $\newline$ $8 - 7 = 1$ $\newline$ The difference is approximately $1$