Mayra Hinojosa
Student Instructions
1. Tap button to begin activity. 2. Tap to move the bottom numbers to the grey square in a subtraction problem. 3. Tap to work your subtraction problem. 4. Tap when finished.
Sharon Sinclair
106
Louisa Stanford
169
107
123
118
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button to begin activity.
2. Tap 
to move the bottom numbers to the grey square in a subtraction problem.
3. Tap 
to work your subtraction problem.
4. Tap 
when finished.
