Math

Subtraction PowerPoint

 IXL Math. http://www.ixl.com/math/grade/first/

http://www.iknowthat.com/com

https://www.xtramath.org/home

 http://www.oswego.org/ocsd-web/games/Mathmagician/cathymath.html

http://scootpad.com/

http://www.smartygames.com/

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