Question

Calcule as expressões numéricas: a) 45 - 12 x 6 =
b) 25 + 2 : 2 - 20 =
c) 84 : (-100 x 2 + 10) =
d) 45 - 90 : 2 =
e) 230 + [ 14 : 7 - ( 100 - 50 x 4)] =
f) 12,75 + 10,05 - 32,95 =

Answer 1

Resposta:

a) 45-72= -27

b) 25+1-20

26-20= 6

c) 80÷(-200+10)

80÷(-190)

-80÷190= -80/190 = -8/19

d)45-45=0

e) 230+[14÷7-(100-200)]

230+[2-(-100)]

230+2+100=332

f) 22,8-32,95= 10,15