Respostas

2013-09-22T12:07:01-03:00
8 + [46 - (18 + 8x2)] =
8 + [46 - ( 18 + 16)] =
8 + [46 - 34] =
8 + 12 =
= 20
4 3 4
2013-09-22T12:10:21-03:00
8 + [ 46 - (26 x 2) ]
8 + [ 46 - 52 ]
8 + [ - 6 ]
2