( 0,5 \cdot 20 - 2,5 ) \cdot 4
Evaluate
30
Factor
2\times 3\times 5
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\left(10-2,5\right)\times 4
Multiply 0,5 and 20 to get 10.
7,5\times 4
Subtract 2,5 from 10 to get 7,5.
30
Multiply 7,5 and 4 to get 30.
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