Question

efetue as multiplicações​

Answer 1

A 140
B0
C -60
D-60
E30
G 800

Answer 2

a)

(+2) × (+7) × (+10)

14 × (+10)

140

b)

(-4) × 0 × (+3) × (-8)

0

c)

(+5) × (-3) × (+2) × (+1) × (-2)

-15 × (+2) × (+1) × (-2)

-30 × (-2)

60

d)

(-1) × (+2) × (-2) × (+5) × (-3)

-2 × (-2) × (+5) × (-3)

4 × (+5) × (-3)

20 × (-3)

-60

e)

(-2) × (-5) × (-1) × (-3)

-10 × (-3)

30

f)

(-10) × (-2) × (-2) × (-10) × (-2)

20 × (-2) × (-10) × (-2)

-40 × (-10) × (-2)

400 × (-2)

-800