I very good math program, I first learned my 2x2 tables with this. Also don't feel you have to buy the full game as you will very likely not be able to go beyond level 5, after level 5 it will be obvious that you have mastered the subject, very fast it will become a race to type the answer and not do the math. (You will do instantly in your head.)
Purchased Software registration key, had to be entered every day when opening software. By day 5, registration key is no longer valid! Can't get hold of software developers, even after putting in Dispute through Pay Pal. Ironic, how I actually thought the software was just what I needed but the developer decided to be a scammer instead, he actually had something good going. Also would not recommend the subscription to Viaboom Image Hosting as it is not compatible with all picture formats as described and also provides no back-up service or support. Pathetic!
