Question

1
Calcule.
a) (+5) + (+3)
b) (-7). + (-10)​

Answer 1

Olá Franciel

$\green{ \mathbf{( + 5) + ( + 3)}} \\ \green{ \mathbf{5 + 3}} \\ \green{ \green{ \boxed{\red{ \mathbf{8}}}}}$

$\green{ \mathbf{( - 7) + ( - 1 0)}} \\ \green{ \mathbf{7 + 10}} \\ \green{ \boxed{ \red{ \mathbf{17}}}}$

Você deve utilizar a regra de Sinais:

(-)×(-)=(+)

(+)×(+)=(+)

(-)×(+)=(-)

(+)×(-)=(-)

• Att: Rokudaime Kakashi