Respostas

2014-03-29T20:48:14-03:00
A) 2,65(2,24-2,45+2,65)
2,65(-0,21+2,65)
2,65(2,44)= 6,466

b) 6(5,29+1,41)
6(6,7)= 40,2

c) 1(1,73+2)
1(3,73)= 3,73

d) 2,24(2,45+2,83+4,47-1)
2,24(9,75-1)
2,24(8,75)= 19,6

e) 5,48(2,83+2,83)
5,48(5,66)= 31,0168