Question

21. Calcule as multiplicações:
a) (+2).(+4).(+5). (+3) =
b) (-2).(-3).(+6).(-1) =

c) (+4).(+8).(-2).(-3) =
d) (-10).(-1).(-2).(-1) =
e) (-20).(-2). (0). (+1) =​

Answer 1

a) 120
b) -36
c) 192
d) 20
e) 0


espero ter ajudado ;)

Answer 2

Resposta:

a) 120

b) -36

c) 192

d) 20

e) 0

Explicação passo-a-passo:

• 2 × 4 = 8
• 8 × 5 = 40
• 40 × 3 = 120

• -2 × -3 = 6
• 6 × 6 = 36
• 36 × -1 = -36

• 4 × 8 = 32
• 32 × -2 = -64
• -64 × -3 = 192

• -10 × -1 = 10
• 10 × -2 = -20
• -20 × -1 = 20

• -20 × -2 = 40
• 40 × 0 = 0
• 0 × 1 = 0