Subtraction Training

Enter the diffrence of the number at the top and the number on the left in the square.
Range:10 to 99
Size:20 x 20
Time:
0.0
Avg. Time:Not available
Best Time:Not available
Attempts:0
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Attempts:Login to view
- 29 52 21 71 28 30 62 96 46 56 45 61 48 57 91 41 88 53 65 66 -
27 27
20 20
48 48
77 77
68 68
87 87
53 53
85 85
54 54
78 78
31 31
25 25
37 37
42 42
55 55
62 62
65 65
76 76
11 11
94 94
- 29 52 21 71 28 30 62 96 46 56 45 61 48 57 91 41 88 53 65 66 -