Question

14. Calcule no caderno
a) (+15) + (+120)
b) (+12) + (-12
c) (-15) + (+9)
d) (-6) + 0​

Answer 1

Resposta:

a)+135

b)0

c)-6

d)-6

(;

Answer 2

a) (+15)+(+120)

135

b)(+12)+(-12)

0

c) (-15)+(+9)

-6

d) (-6)+0

-6

lembre-se:

- com - = +

+ com - = -

+ com + = +

- com += -