Question

( + 20 ) + ( + 4 ) = ??

( - 24 ) + ( - 8 ) = ??

( + 16 ) + ( + 29 ) = ??​

Answer 1

Resposta:

(+20) + (+4) = 20 + 4 = 24 / conserva o sinal = +24

(-24) + (-8) = 24 + 8 = 32 / conserva o sinal = -32

(+16) + (+29) = 16 + 29 = 45 / conserva o sinal = + 45

Espero ter ajudado!