Question

Calcule:

a) – 4 + 9 – 7 =
b) (+12) – (+23) =
c) – 11 + 6– 9 + 13 – 9=
d) – 6 – 9 – 1 =

e) (– 9) + (– 2) =
f) + 13 – 43 – 5 – 6 + 17 + 2 =
g) 12 – 8 + 3 =

h)(– 3) + (+ 12) =
i) (– 1) – (– 8) + ( + 15) =
j) 27 + 13 – 51 =
k) (+ 4) + (– 7) =

l) ( + 5) + (– 3) – (– 8) =​

Answer 1

Explicação passo-a-passo:

Calcule:

a) – 4 + 9 – 7 =

5-7=

-2

b) (+12) – (+23) =

-11

c) – 11 + 6– 9 + 13 – 9=

-11+6-13=

-5-13=

-18

d) – 6 – 9 – 1 =

-15-1=

-16

e) (– 9) + (– 2) =

-11

f) + 13 – 43 – 5 – 6 + 17 + 2 =

+13-43-5-6+19=

-30-5-25=

-35-25=

-60

g) 12 – 8 + 3 =

4+3=

7

h)(– 3) + (+ 12) =

9

i) (– 1) – (– 8) + ( + 15) =

7+(+15)=

22

j) 27 + 13 – 51 =

40-51=

-11

k) (+ 4) + (– 7) =

-3

l) ( + 5) + (– 3) – (– 8) =

2-(-8)=

10

Espero ter ajudado ❤️.