February 2021 0 74 Report
Calcule o valor de cada expressão numerica abaixo: a) 2/5 x 10/4 - 1/20 + 3/10
b) 3/5 x 1/2 - 3/4 x 2/5
c) 3/4 - (1/4 - 2x3 - 1/12)
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