Question

Calcule as expressões numéricas:A) -12+18+(-20)-14B) -16-12-30-(-14)C) 13+(-17)-(-15)+(+17)D) -13-(-19)-11+(-17)E) -15+11-(-17)-(+13)F) -28+22+(-22)-(-24)

Answer 1

Olá

Vamos lá

A) -12+18+(-20)-14
= 6-20-14
=-14-14
=-28


B) -16-12-30-(-14)
=-28-30+14
=-58+14
=-44

C) 13+(-17)-(-15)+(+17)
=13-17+15+17
=-4+15+17
=11+17
=28

D) -13-(-19)-11+(-17)
=-13+19-11-17
=6-11-17
=-5-17
=-22

E) -15+11-(-17)-(+13)
=-15+11+17-13
=-4+17-13
=13-13
=0

F) -28+22+(-22)-(-24)
=-28+22-22+24
=-28+24
=-4

Bons estudos, dúvidas só chamar !!! :>)) Erico Munayer