\frac { 1 } { 2 } [ 5 + 15 ) \times 10
Evaluate
100
Factor
2^{2}\times 5^{2}
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\frac{1}{2}\times 20\times 10
Add 5 and 15 to get 20.
\frac{20}{2}\times 10
Multiply \frac{1}{2} and 20 to get \frac{20}{2}.
10\times 10
Divide 20 by 2 to get 10.
100
Multiply 10 and 10 to get 100.
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