Question

elimine os parenteses e resolva as expressoes

(+ 34 – 25) + (– 8 – 3 – 12) =

e

15 + [– 5 + (– 4 + 10 – 25)] =

Answer 1

9 + (-23) = -14

15 + [-5 + (-19)]

15 + [-24]

-9