Mathletics
Please do this horizontally rather than vertically.
This means keep doing the same concept for a whole lesson, or series of lessons. Dyslexics learn by repetition, so do adding for whole lesson and then take away for a whole lesson etc. Children know when they are ready to move on so allow your child to keep doing the same things over and over again, moving on only when s/he is consistently getting the sums correct.
Mathletics has a built in reward system, and kids can race against kids from all over the world, without the embarrassment of knowing who they are.
This can be found at www.mathletics.com.au and costs about $100 a year per child.
