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From Chris Marks:
Learning the multiplication tables isn't fun. No matter how cute the graphics or how funny the animation, the only real way to learn your multiplication facts is through repetition and brute force memorization. But, that is time consuming and decidedly un-fun. Enter X Training. In Test mode, X Training will give you a set of 50 problems and keep a record of how long it took you to complete the set. Normally, 4th graders should practice until they can do this in 3 minutes. That's where Drill mode comes in. In Drill mode, X Training makes the best use of your time by first baselining your performance and then targeting those problems which give you the most difficulty thereby repeating those problems you need to repeat and not the ones you already know. Drill mode will quiz you endlessly but it shows you an estimate of what it thinks your 50 problem test time will be. When your estimated test time is where you want, head back over to Test mode to see how much you've improved!The main screen shows your most recently completed test time for each problem set so you can quickly see which ones you need to work on.