Respostas

2014-04-10T22:24:01-03:00
280 / 4 - 400 * 8 + 60 =
70 - 3200 + 60 = 
-3070

 10 * -3070 = -30700 = -307
100                  100

-3.070 -307 = -3.377
1 5 1
2014-04-10T22:25:41-03:00
280÷4-(400)×8+(20×3) - 10 %

70 - 3200 + 60
- 3070 - 10 %
2763
1 5 1