HARD SUBTRACTION. Be able to answer this in less than one minute.   

1.82 71 = ______________  26.92 66 = ______________
2.40 26 = ______________  27.32 32 = ______________
3.87 13 = ______________  28.93 57 = ______________
4.77 46 = ______________  29.86 46 = ______________
5.50 37 = ______________  30.32 13 = ______________
6.54 22 = ______________  31.79 42 = ______________
7.65 58 = ______________  32.42 23 = ______________
8.92 46 = ______________  33.78 27 = ______________
9.96 73 = ______________  34.97 16 = ______________
10.98 39 = ______________  35.87 59 = ______________
11.76 68 = ______________  36.83 10 = ______________
12.45 36 = ______________  37.54 23 = ______________
13.84 35 = ______________  38.76 76 = ______________
14.93 73 = ______________  39.81 52 = ______________
15.76 41 = ______________  40.32 15 = ______________
16.78 11 = ______________  41.58 16 = ______________
17.90 11 = ______________  42.57 37 = ______________
18.84 31 = ______________  43.63 31 = ______________
19.46 35 = ______________  44.48 38 = ______________
20.74 16 = ______________  45.73 14 = ______________
21.46 25 = ______________  46.40 39 = ______________
22.89 56 = ______________  47.72 13 = ______________
23.34 16 = ______________  48.31 17 = ______________
24.82 82 = ______________  49.83 43 = ______________
25.88 36 = ______________  50.15 13 = ______________