Adding and Subtracting Decimals
Try these games, you will need a paper and pencil.
1. http://www.math-play.com/decimal-math-games.html
2. http://www.mathplayground.com/ASB_Hungry_Puppies_Decimals.html
3. http://www.mathplayground.com/number_bonds_decimals.html
4. http://www.sheppardsoftware.com/mathgames/decimals/matchingDecimalsAdd.htm
5. http://mrnussbaum.com/hotel/
6. http://interactivesites.weebly.com/decimals.html