Question

01.Resolva as seguintes expressões:
a) – 8 + 21 =
b) 25 – 36 =
c) 14 – 25 +13 =
d) (-3) . (+13) =
e) (+ 40) . (-10) =
f) ( -56) : ( - 8) =

Answer 1

Resposta:

a) 13

b) -11

c) 2

d) -39

e) -400

f) 7

Answer 2

a) – 8 + 21 =

21-8

13

b) 25 – 36 =

-(36-25)

-11

c) 14 – 25 +13 =

-11+13

2

d) (-3) . (+13) =

(-3) × 13

-39

e) (+ 40) . (-10) =

40 × (-10)

-400

f) ( -56) : ( - 8) =

-56 : -8

7