Pretty good, only one I could find where numbers are shown vertically.

I like this one. I like that the numbers are shown vertically, like youd write them to solve with bigger numbers. I think that helps my kids (8 year old twins) solve the problems by columns, tens, ones, etc. Thats very helpful as theyre just learning.

I do wish there was some indication when they get a problem "right." A wrong answer gets a "gong," I think it would help to give a beep when they get the right answer. As it is I found it a trifle confusing, since the new problem just appears where the old one was, I almost didnt notice it was changed. A little transition would help maybe.

Im going to get the full version, since I think this is on the right track.

Accordion Noir about Math Drills Lite