Question

Determine o valor de cada expressão numérica
A) 100-[(2.4-6)+(2+6.4)]
B) 60+2{[4.(6+2)-10]+12}
C) 80-5.(28-6.4)+6-3.4
2 3
D) 4 -10+(2 -5)
2
E) 30+[6 :(5-3)+1]

Answer 1

A) 100-[(2.4-6)+(2+6.4)]

100-[(8-6)+(2+24)]

100-[2+26]

100-28

72

B)60+2{[4.(6+2)-10]+12}

60+2{[4.8-10]+12}

60+2{[32-10]+12}

60+2{[22]+12}

60+2{22+12}

60+2{34}

60+2+34

62+34

96