And here's a reverse-math extension. (and No funny SEO) :)
I think clicking is easier than typing.
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I think clicking is easier than typing.
Feel free to test it and let me know :D http://www.mental-math-trainer.com/
Earlier quoted context omitted.
With a bit of tweaking, Anki [0] or another Spaced Repetition Software program will do just that. You can configure it to categorize your answers by how fast you answered them. Then it will make the easy ones less frequent. I used it to memorize the times table up to 20x20. [0] http://ankisrs.net
Is that stack available for times-tables ready to install and use, if not can you share it? Thanks.
1,1,1
1,2,2
2,1,1
2,2,4
3,1,3
...etc