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Estimate the sum by rounding each number to the nearest
whole number
and then adding.
\newline
5.09
+
3.12
5.09 + 3.12
5.09
+
3.12
\newline
The sum is approximately _____.
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Math Problems
Grade 7
Estimate sums, differences, and products of decimals
Full solution
Q.
Estimate the sum by rounding each number to the nearest whole number and then adding.
\newline
5.09
+
3.12
5.09 + 3.12
5.09
+
3.12
\newline
The sum is approximately _____.
Round Numbers:
Step
1
1
1
: Round each number to the nearest whole number.
5.09
5.09
5.09
rounds to
5
5
5
and
3.12
3.12
3.12
rounds to
3
3
3
.
Add Rounded Numbers:
Step
2
2
2
: Add the rounded numbers together.
5
+
3
=
8
5 + 3 = 8
5
+
3
=
8
.
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