Question

pre siso de ajuda para hoje

resolva as operaçoes

a) (+250 ) + ( -410)
b) (+5)+(-12)+(+9)
c) (+60 ) - (+9)
d) (-112) - ( -42)

resolva as expressoes

a) (10-12) -3+ (8+7-5)

b) -10+{2-1+(-20+4) }

c) 58-{-5)2-5-1 )+3}-)9

d)+2+{+8-[-5-(+7-2) ] -7 ]

e-80 [ -4 - [ -8 + ( +12-6-2)+2+3

Answer 1

Resposta:

a)-160

b)+2

c)+51

d)-70