Question

efetue as multiplicações .
a) (+7) • (+4) =
b) (+5) × 0 =
c) (+6)(+6) =
d) (+13) • (+2) =
e) 0 × (+11) =
f) (+5)(+17) =

Answer 1

a)28
b)0
c)36
d)26
e)0
f)85

Answer 2

a) +28
b) 36
c) +12
d)+26
e)0
f)85

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