Question

efetue as operações indicadas.

a) 5-6+8-10+3

b) 45-35+55-65+75

c)-22+4-12+25-11+38

d) 9+17-2+6-22+9-34

Answer 1

a) 5-6+8-10+3 =
    -1 - 2 + 3 =
    -3 + 3 =
    0
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b) 45-35+55 - 65 + 75 =
    10 - 10 + 75 =
    0 + 75 =
     75
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c) -22 + 4 -12 + 25 - 11 + 38 =
    -18 + 13 + 27 =
    -5 + 27 =
    22
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d) 9 + 17 - 2 + 6 - 22 + 9 - 34 = 
    26 + 4 - 13 - 34 =
    30 - 47 =
    - 17