ME AJUDEM PFVR!!!!!
1- Efetue as adições:
a) (+2) + (+3) =
b) (+1) + (−8) =
c) (−9) + (+11) =
d) (−1) + (−2) =
e) (+3) − (+2) =
f) (−10) − (−2) =
g) (+7) + (+2) + (+5) =
h) (+4) − (+1) + (−8) =
i) (−10) + (−20) − (−30) =
j) (−8) − (−1) − (−2) =
k) (−9) +(−4) + (−3) =
Soluções para a tarefa
Respondido por
1
Resposta:
a 5
b -7
c 2
d -3
e 5
f -12
g 14
h -3
i -60
j -11
k -16
Respondido por
1
Resposta:
Faz jogo de sinal:
+ + = +
- - = +
+ - = -
a) (+2) + (+3) =
5
b) (+1) + (−8) =
-7
c) (−9) + (+11) =
2
d) (−1) + (−2) =
-3
e) (+3) − (+2) =
1
f) (−10) − (−2) =
-8
g) (+7) + (+2) + (+5) =
14
h) (+4) − (+1) + (−8) =
-5
i) (−10) + (−20) − (−30) =
0
j) (−8) − (−1) − (−2) =
-5
k) (−9) +(−4) + (−3) =
-16
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