Question

(-12) - (-18)=
(-20)-(+15)=
(-15)-(-7)=
(+35)-(+12)=
(+6)-(+15)=
(+9)-(-8)=
(-21)-(-21)=

Answer 1

Explicação passo-a-passo:

a) 6

b) -35

c) -8

d) -47

e) -9

f) 17

g) 0