Subtraction Training

Enter the diffrence of the number at the top and the number on the left in the square.
Range:100 to 999
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
- 139 388 977 495 771 564 355 839 368 864 524 553 788 854 917 965 209 822 686 104 -
279 279
608 608
386 386
290 290
867 867
462 462
103 103
410 410
765 765
602 602
705 705
774 774
678 678
897 897
636 636
488 488
441 441
734 734
977 977
345 345
- 139 388 977 495 771 564 355 839 368 864 524 553 788 854 917 965 209 822 686 104 -