Question

1-calcule as adições:

a) (+8)+(-5)= f) (+1)+(-8)=
b) (+15)+(-3)= g) (+3)+(-12)=
c) (+10)+(-4)= h) (-4)+(+1)=
d) (-12)+(+10)= i) (-3)+(+3)=
e) (-30)+(+10)=
​

Answer 1

a)3

b)12

c)6

d)-2

e)-20

f)-7

g)-9

h)-3

i)0