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Let’s check out your problem:
Estimate the difference by rounding each number to the nearest
whole number
and then subtracting.
\newline
8.4
−
4.4
8.4 - 4.4
8.4
−
4.4
\newline
The difference is approximately
‾
\underline{\hspace{3em}}
.
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Math Problems
Grade 7
Estimate sums, differences, and products of decimals
Full solution
Q.
Estimate the difference by rounding each number to the nearest whole number and then subtracting.
\newline
8.4
−
4.4
8.4 - 4.4
8.4
−
4.4
\newline
The difference is approximately
‾
\underline{\hspace{3em}}
.
Round Numbers:
Step
1
1
1
: Round each number to the nearest whole number.
\newline
8.4
8.4
8.4
rounds to
8
8
8
and
4.4
4.4
4.4
rounds to
4
4
4
.
\newline
Calculation:
8.4
≈
8
8.4 \approx 8
8.4
≈
8
,
4.4
≈
4
4.4 \approx 4
4.4
≈
4
Subtract Rounded Numbers:
Step
2
2
2
: Subtract the rounded numbers.
\newline
Calculation:
8
−
4
=
4
8 - 4 = 4
8
−
4
=
4
\newline
This gives the estimated difference.
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