Addition Practice
- www.khanacademy.org/math/arithmetic/arith-review-add-subtract/arith-review-adding-carrying/e/multi-digit-addition
- www.math-play.com/multi-digit-addition-basketball-game/multi-digit-addition-basketball-game.html
- downloads.bbc.co.uk/skillswise/maths/ma08addi/game/ma08addi-game-addition-by-splitting/addition.swf
- www.learningliftoff.com/wp-content/uploads/2014/03/placeValueADD_newSetup.swf
Subtraction Practice
- www.youtube.com/watch?v=Y6M89-6106I
- downloads.bbc.co.uk/skillswise/maths/ma09subt/game/ma09subt-game-subtraction-by-splitting/subtraction.swf
- www.mhschool.com/math/mathconnects/assets/mhln/00061632/00061632.swf
- www.khanacademy.org/math/arithmetic/arith-review-add-subtract/arith-review-regrouping-3-dig/e/multi-digit-subtraction