Question

Use a regra para resolver as multiplicacoes e divisoes

a) (+2) . (+7) . (+10)

b) (-4) . 0 . (+3)

c) (+5) . (-3) . (+2) . (+1) . (-2)

d) (-14) : (-2)

e) (+25) : (+5)

Answer 1

a) +140
b) 0
c) +60
d) +7
e) +5

Answer 2

Olá...

a)

( + 2) . ( + 7) . ( + 10 ) =

+ 14 . + 10 =

+ 140

b)

( - 4) . 0 . ( + 3) =

0 . + 3 =

0

c)

( + 5) . ( - 3) . ( + 2) . ( + 1) . ( - 2) =

- 15 . + 2 .- 2

- 30 . - 2

+ 60

d)

( - 14) ÷ ( - 2)

+ 7

e)

(+ 25) ÷ ( + 5)

+ 5

Espero ter ajudado.