Question

Efetue as multiplicações:
a (+4). (-2) (+3)

b (+6) (+2) (-1)

c (-7) (+5) (-2)

d (-2) (-3) (+8)

e (+3) (-1) (-2) (-5)

Answer 1

a) -24; b) -12; c) +70; d) +48; e) -30.

Answer 2

a)
= (+4). (-2) (+3)
= (- 8) . 3
= - 24
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b) 
= (+6) (+2) (-1)
= 12.(-1)
= - 12
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c) 
= (-7) (+5) (-2)
= (- 35).(-2)
= 70
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d) 
= (-2) (-3) (+8)
= 6.8
= 48
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e) 
= (+3) (-1) (-2) (-5)
= (- 3). (+ 10)
= - 30
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