Audrey Leppke
Student Instructions
1. Click the button 2. Add dots using the tool to the blank domino to find the missing addend 3. When you are done, click the
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Alise Gaughan
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Paula Hutchinson (@pdhutch)
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button
2. Add dots using the 
tool to the blank domino to find the missing addend
3. When you are done, click the 
