Question

5- Calcule:

a) (+20) + (-20) - (+10)=
b) (-20) + (+20)=
c) (-55) + (+20) + (+10)=
d) 61 + 39=
e) -63 + 33=
f) 96 - 104=​

Answer 1

Resposta:

(+20) + (-20) - (+10)= -10

(-20) + (+20)= 0

(-55) + (+20) + (+10)= -21

61 + 39= 22

-63 + 33= -30

96 - 104= -8