Question

3 EXPRESSÕES NUMÉRICAS

e) 19 – ( - 4 ) . ( + 5 )
f) 7 . ( - 3 ) – 9 . ( - 6 ) + 11 . ( - 2 )

Me ajudem?

Answer 1

Resposta:

e) 19 – ( - 4 ) . ( + 5 )

19 - (-20)

19 + 20 = 39

f) 7 . ( - 3 ) – 9 . ( - 6 ) + 11 . ( - 2 )

-21 + 54 - 22

-43 + 54

11