Question

Determine o valor das expressões abaixo:
−8+ (−6)− (+3) =
−21− 7 − 6− (−15)− 2 −(−10) =
10 − (−8)+ (−9)− (−12) − 6+ 5 =

Answer 1

Resposta:

A- -8 -6 -3

-17

B- -21 -7 -6 +15 -2 +10

-36 +25

-11

C- +10 +8 -9 +12 -6 +5

+35 -15

+20