3,29+0,6*1,3
1,26+0,8*2,88
(2,6-5,4):0,8

1)3,29+(0,6×1,3)=3,29+0,78=4,07

2)1,26+(0,8×2,88)=1,26+2,304=3,564

3)(2,6-5,4)÷0,8=-2,8÷0,8=-3,5