Question

1) Efetue :

a) (+5) ∙ (+ 3) = ______

b) (+ 15) ÷ (−3) = ______

c) (+ 4) ∙ (– 5) = _______

d) (+ 20) ÷ (– 5) = _____

e) (– 8) ∙ (+ 4) = ______

f) (– 35) ÷ (+ 7) = ______

g) (– 6) ∙ (– 7) = _______

h) (– 40) ÷ (– 5) = ______

i) (– 2) ∙ (+4) ∙ (+3) ∙ (– 1) = _______

j) (– 5) ∙ (– 6) ∙ (– 2) = _______​

Answer 1

a) (+5).(+3)

+15

b) (+15)÷(-3)

-5

C) (+4).(-5)

-20

d) (+20)÷(-5)

-4

e) (-8).(+4)

-32

f) (-35)÷(+7)

-5

g) (-6).(-7)

+42

h) (-40)÷(-5)

+8

i) (-2).(+4).(+3).(-1)

-8.(+3).(-1)

-24.(-1)

-24

J) (-5).(-6).(-2)

+30.(-2)

-60

Obs: As respostas estão em baixo das expressões respondidas.