Question

1 - Calcule o valor das expresso
a) (-10) -(-8) + (-2)-( + 5) + (-3) = -
b) (20 - 25) -5 + ( 18 -7 + 5) =
c) 8-(-6) + (-5) + ( 8 -3 + 5 -10 +12) =
d) ( + 3 -10 -5 +7-12) -(-8 + 3 - 4 + 6-18 ) =
e) +10 + (-6-3) - 4 -(+8-5)-(-7 + 12) =
f) + 14 - 21 + 45 - 6 - 8 + 35 -50 + 21
=
g) + 8 - 5+3 -4 + 7 - 2 + 6 =

Answer 1

a) -10+8-2-5-3=-20+8=-12

b) -5-5+16=6

c) 8+6-5+25-13= 39-18=21

d) 10-27+21=31-27=4

e) 10-9-4-3-5=10-21=-11

f) 115-85=30

g) 24-11=13

Answer 2

Resposta:

a) -12 b) 6 c) 21 d) 28 e) -11 f) 30 g) 13

Explicação passo-a-passo: a) (-10)-(-8)+(-2)-(+5)+(-3) -10+8-2-5-3 -20+8= -12

b) (20-25)-5+(18-7+5) -5-5+18-7+5 -17+23=6

c) 8-(-6)+(-5)+(8-3+5-10+12) 8+6-5+8-3+5-10+12 39-18=21

d) (+3-10-5+7+12)-(-8+3-4+6-18) +3-10-5+7+12+8-3+4-6+18 52-24=28

e) +10+(-6-3)-4-(+8-5)-(-7+12) 10-6-3-4-8+5+7-12 22-33=-11

f) 14-21+45-6-8+35-50+21 -85+115=30

g) 8-5+3-4+7-2+6 24-11=13