Question

Efetue:
A) (-7) + (+6) =
B) (-18) + (-9) =
C) (+5) + (-45) =
D) (-15) + (-7) =
E) (-56) + (+18) =
F) (-32) + (-18) =
G) (-1) + 0 =
H) (+26) + (-45) =
I) (+13) + (-16) =
J) (+32) + (+9) =
K) (-2) + (+3) + (+2) =
L) (-9) + (-8) + (+12) =
M) (+142) + (-438) + (+165) =
N) (-5) + (+6) + (-12) + (-2) + (+5) =
O) (-23) + (+12) + (-6) + (+21) + (-30) =

Answer 1

Olá!

Resposta:

( - 7 ) + ( + 6 )

- 7 + 6

- 1

( - 18 ) + ( - 9 )

- 18 - 9

- 27

( + 5 ) + ( - 45 )

+ 5 - 45

- 40

( - 15 ) + ( - 7 )

- 15 - 7

- 22

( - 56 ) + ( + 18 )

- 56 + 18

- 38

( - 32 ) + ( - 18 )

- 32 - 18

- 50

( - 1 ) + 0

- 1 + 0

- 1

( + 26 ) + ( - 45 )

+ 26 - 45

- 19

( + 13 ) + ( - 18 )

+ 13 - 18

- 5

( + 32 ) + ( + 9 )

+ 32 + 9

+ 41

( - 2 ) + ( + 3 ) + ( + 2 )

- 2 + 3 + 2

+ 1 + 2

+ 3

( - 9 ) + ( - 8 ) + ( + 12 )

- 9 - 8 + 12

- 17 + 12

- 5

( + 142 ) + ( - 438 ) + ( + 165 )

+ 142 - 438 + 165

- 296 + 165

- 131

( - 5 ) + ( + 6 ) + ( - 12 ) + ( - 2 ) + ( + 5 )

- 5 + 6 - 12 - 2 + 5

+ 1 - 12 - 2 + 5

- 11 - 2 + 5

- 13 + 5

- 8

( - 23 ) + ( + 12 ) + ( - 6 ) + ( + 21 ) + ( - 30 )

- 23 + 12 - 6 + 21 - 30

- 11 - 6 + 21 - 30

- 27 + 21 - 30

- 6 - 30

- 36