Adding Integers

Drag the appropiate number of tiles to each side of the + sign to model the question. When your model matches the question, move all of the tiles to the left of the + sign. If you have yellow and red tiles, try placing a red tile on top of the yellow tile to show a zero pair. Repeat with all of the zero pairs to see the integer sum modelled by each set of tiles.

Comments to:  Jim Reed
Started September, 1998. Copyright 1999, 2000, 2001, 2002

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