My problem solving,

Walt: identify and solve tricky decimal problems.

first I did 9.6+9.5+9.4= something.
 and then I add 0.6+0.5=11 and then I but a decimal point in it and then it's 10.1 and then I add 10.1+0.4=14 and that is 10.4 in a decimal point and then I did 0.9 + 0.9 = 18 and that is 10.8 and then I add 10.8 + 0.9 = 27 and that is 20.7 and then I add  1.4 in it and then that is the answer 28.5.......