Question

Efetue:

a) (-4)-(+5)=
b) (+7)-(-3)=
c) (-6)-(+4)=
d) (+10)-(+9)=
e) (+3)-(+5)-(-2)-(+9)=
f) (+8)-(-3)=
g) (-11)+(+4)-(-7)=
h) (-1)+(+3)-(-1)-(+3)=
i) (+20)-(-3)-(+14)+(+8)=
j) (-17)-(+6)+(+21)=​

Answer 1

Resposta:

a)-9

b)10

c)-2

d)1

e)-9

f)11

g)0

h)0

i)17

j)-2

.