5 stars: really fun, helps doing math fast in your head
5 stars: Please add permutations and combinations
5 stars: Very gud very gud
4 stars: I think it ok
5 stars: epic win
5 stars: Great for improving speed. Very unforgiving, just the way it needs to be. A suggestion would be to consider making the least significant digits in the multi choice answers the same in at least sometimes. Too easy in many situations because of that.
5 stars: Amazing app. My only gripe is tht the summation puzzles are a bit too hard to solve in 10 secs. I kinda had to keep pausing for some of the hard ones to advance to the next puzzle. Other than that keep it up!
5 stars: Great app. However, you can calculate only the first number and then chose the one of the three answers. Even if I don't want to do it,it still happens subconsciously.
5 stars: Cool program.
5 stars: Best game
5 stars: This is incredible! I wanted to find a math practice app just to keep my mind busy, but nothing for kids. This is exactly what I was looking for! Sometimes extremely challenging, because seriously I'm out of practice, and a great boost to the ego! If you used to be very good with math but have been away from classes for a long time, use this!
4 stars: Exercise curve is a bit too steep with no way to go back to earlier difficulties, leaving you failing and re-trying the same level that is too hard for you instead of getting more exercise on a less challenging stage before ...