Questions: Estimate 54.395-44.52 by first rounding each number to the nearest whole number.

Transcript text: Estimate $54.395-44.52$ by first rounding each number to the nearest whole number.

Solution

Step 1: Round each number to the nearest whole number

$54.395$ rounds to $54$ because the decimal part $0.395$ is less than $0.5$.
$44.52$ rounds to $45$ because the decimal part $0.52$ is greater than or equal to $0.5$.

Step 2: Subtract the rounded numbers

Subtract the rounded numbers: \[ 54 - 45 = 9 \]

\[ \boxed{9} \]

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