September 2019 1 94 Report
4. Qual é o valor de cada expressão?

a)  1,7 + ( \frac{2}{3} - 0,25 ) - \frac{1}{4}

b)  [ 1,6 + ( \frac{1}{4} - 0,75 + 2 ) - \frac{3}{5}
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