I need help with the table below:

The formulas in row 12 total rows 2-11 and read '=A11*55' etc etc. Problem
is they are slightly off as shown in row 13. I have rows 2-11 formatted as
numbers at 2 decimal point and row 12 formatted as currency at 2 decimal
points. I tried putting '55' and '$55.00' in an individual cell and adjusting
the formula to read 'Axx*Bxx' with the same results.

Breakdown of Hours Based on Plowing Scenerio
1 A B C D E F Total(check)
2 0.98 n/a 0.36 n/a 0.16 n/a 1.50
3 1.11 0.30 0.40 n/a 0.18 n/a 2.00
4 1.00 n/a n/a n/a n/a n/a 1.00
5 1.27 0.35 0.46 n/a 0.21 0.21 2.50
6 0.00 0.00 0.00 0.00
7 0.00 0.00 0.00 0.00
8 0.00 0.00 0.00 0.00
9 0.00 0.00 0.00 0.00
10 0.00 0.00 0.00 0.00
11 4.37 0.65 1.22 0.00 0.55 0.21 7.00
12 $240.15 $35.76 $67.33 $0.00 $30.30 $11.46 $385.00
13 -$0.20 $0.01 $0.22 $0.05 $0.09 $0.17 row error