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To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

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12x5 60
12x6 72
12x7 84
12x8 96
12x9 108
13x3 39
13x4 52
13x5 65
13x6 78
13x7 91
13x8 104
13x9 117
14x3 42
14x4 56
14x5 70
14x6 84
14x7 98
14x8 112
14x9 126
15x3 45
15x4 60
15x5 75
15x6 90
15x7 105
15x8 120
15x9 135
Created by: sbhatt983