Question

1. Resolva as expressões numéricas.
a) 12 + 5 X (-4) + 3
b)-3x3 + 4x8
c) +3 - 5 x8+4
a) + 15 - 14 + 20 x 2
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Answer 1

Resposta:

A)12+5x(-4)+3

15-20=-5

B)-3x3+4x8

-9+32=23

C)+3-5x8+4

7-40=-33

D)+15-14+20×2

1+40=41