Question

1 efetue

a) (-8) - (+7)=

b) (-30) - (+ 70)=

c) ( -72) - (+30)=

d) (-3)-(+7)=

e) (+10)-(+30)=

f) (+80)-(-15)=​

Answer 1

Resposta:

$a) (-8) - (+7)= -15\\b) (-30) - (+ 70)= -100\\c) ( -72) - (+30)= -102\\d) (-3)-(+7)= -10\\e) (+10)-(+30)= -20 \\f) (+80)-(-15)= +95$