Question

Calcule o valor das expressões

a) {60+[2x(4+3x8)-9]}

b) 30+100÷[10+(60-4x10-10)]

Answer 1

a)3×8=24+4= 28 28×2=56 56-9 =47 47+60=107
b)4×10=4o. 60-40-10=10 10+10=20 100÷2=5 30+5=35