Question

5) Resolva as expressões a seguir: a) 5 4 + 5 8 − 1 2 = b) − 11 5 + 4 3 − 2 15 = c) 3 4 − 5 6 − 7 12 =

Answer 1

a) 54+58-12=100

b) -115+43-215=-287

c) 34-56-712=-734

espero ter ajudado :)