Question

Tarefa do 8°Ano Calcule: a) +5+3 b) +1+4 c) -4-2 d) -3-1+5 e) -10+17-14 f) (-4)+(-7) g) (-5)-(-1)+(-3)

Answer 1

a) +8
b) +5
c) -6
d) +1
e) -7
f) -11
g) -7

Answer 2

Calcule:
a) +5+3 = + 8

b) +1+4 = + 5
c) -4-2 = - 6
d) -3-1+5 = - 4 + 5 = + 1

e) -10+17-14
= 7 - 14
= - 7
___________

f) (-4)+(-7)
= - 4 - 7
= - 11

g) (-5)-(-1)+(-3)
= - 5 + 1 - 3
= - 4 - 3
= - 7