1) Resolva as operações com números inteiros:
a) – 7 + 3 – 6 + 1 =
b) + 5 – 7 – 1 + 5=
c) 5 + 2 – 3 – 2 =
d) 4 – 6 + 3 + 1 =
e) + 4 – 8 + 8 – 1 =
f) – 1 + 4 – 4 + 7 + 5=
g) – 5 + 4 + 1 – 1 – 1 =
h) 11 – 9 + 10 + 5 – 1 =
i) – 4 – 5 + 5 + 4 =
j) 3 – 3 + 5 + 1 – 9 =
k) – 9 + 2 – 4 =
l) + 4 + 6 + 2 + 1 =
m) – 6 – 8 – 1 =
n) + 3 + 1 – 4 – 6 =
o) – 7 – 1 – 1 – 2 =
p) + 4 + 1 + 3 + 5 =
q) – 9 – 7 + 7 + 1 + 2 =
r) – 8 + 5 + 8 – 2 – 1 =
Soluções para a tarefa
Resposta:
a) - 9
b) 2
c) 2
d) 2
e) 3
f) 11
g) - 2
h) 16
i) 0
j) - 3
k) - 11
l) 13
m) - 15
n) - 6
o) - 11
p) 13
q) - 6
r) - 8
Explicação passo-a-passo:
a) – 7 + 3 – 6 + 1 =
- 4 - 5 =
= - 9
b) + 5 – 7 – 1 + 5=
- 2 + 4 =
= 2
c) 5 + 2 – 3 – 2 =
7 - 5 =
= 2
d) 4 – 6 + 3 + 1 =
- 2 + 4 =
= 2
e) + 4 – 8 + 8 – 1 =
- 4 + 7 =
= 3
f) – 1 + 4 – 4 + 7 + 5=
3 + 3 + 5 =
6 + 5 =
= 11
g) – 5 + 4 + 1 – 1 – 1 =
- 1 - 1 =
= - 2
h) 11 – 9 + 10 + 5 – 1 =
2 + 14 =
= 16
i) – 4 – 5 + 5 + 4 =
- 9 + 9 =
= 0
j) 3 – 3 + 5 + 1 – 9 =
6 - 9 =
= - 3
k) – 9 + 2 – 4 =
- 7 - 4 =
= - 11
l) + 4 + 6 + 2 + 1 =
10 + 3 =
= 13
m) – 6 – 8 – 1 =
- 14 - 1 =
= - 15
n) + 3 + 1 – 4 – 6 =
4 - 10 =
= - 6
o) – 7 – 1 – 1 – 2 =
- 8 - 3 =
= - 11
p) + 4 + 1 + 3 + 5 =
5 + 8 =
= 13
q) – 9 – 7 + 7 + 1 + 2 =
- 16 + 10 =
= - 6
r) – 8 + 5 + 8 – 2 – 1 =
- 3 - 5 =
= - 8