Question

Efetue:
a)(+7)+(+3)=
b)(-2)+(+15)=
c)(-3)+(-9)=
d)(-8)+0+(+1)=
e)(+31)+(-45)+(+3)=
f)(+27)+(+13)+(-28)=

Answer 1

Resposta:

a. 10

b. 13

c. -12

d. 7

e. -11

f. 12

Answer 2

Resposta:

a)(+7)+(+3)= 10

b)(-2)+(+15)= 13

c)(-3)+(-9)= -12

d)(-8)+0+(+1)= -7

e)(+31)+(-45)+(+3)= -11

f)(+27)+(+13)+(-28)= 12