Question

Calcule:


a) (+3 ) − (+ 5) − (− 10) =

b) (+2 ) + (− 6) − (+ 5) + (+ 2) =

c) (−5 ) − (− 8) + (− 7) − (− 9) + (−3) =

d) (−2 ) − (− 4) − (+ 7) − (− 2) + (−12) =

e) (+4) + (– 6) – (+7) – (– 6) + (+7) =

Answer 1

Resposta:

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