Question

Por favor faça com cálculo para mim

Answer 1

Resposta:

b) – 2 – 5 + 8 = + 1

– 7 + 8 = + 1

c) – 1 – 3 – 8 + 2 – 5 = – 15

– 17 + 2 = – 15

d) – 15 + (– 25) – (– 81) = 41

– 15 – 25 + 81 =

– 40 + 81 = 41

e) 18 + (– 29) – (+ 45) = – 56

18 – 29 – 45 =

18 – 74 = – 56

f) 104 – 45 – 28 =  31

104 – 73 = 31

g) (– 73) + (– 98) = – 171

– 73 – 98 = – 171

h) + (+ 9 – 5 + 1) – (– 4 – 3 + 2) = 10

9 – 5 + 1 + 4 + 3 – 2 =

+ 17 – 7 = 10

i) – (+ 10 – 20) + (– 40 + 50 – 60) = – 40

– 10 + 20 – 40 + 50 – 60 =

– 110 + 70 =  – 40