Question

calcule as formas algébricas:

a) 15 - (3 - 2) + (7 - 4)

b) (9 - 4 + 2) - 1 + (9 + 5 - 3)

c 40 - 18 - (10 + 12)​

Answer 1

Resposta:

A) igual a 13

b) igual a 17

c) igual a 24