A missing addend game in which you must race the clock to solve 20 equations to achieve a high score.
Drag and drop the correct card onto the empty box that completes the equation.
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1. | MrKramer | 1512 | |
2. | powerup2002 | 1491 | |
3. | Nikaeo | 1449 | |
4. | sonyamathgirl | 1449 | |
5. | owenc123 | 1449 |