Multiple choice math games.
Personally, I'm very very didn't well meth.
interlude of using mind-Try feeling the pressure.
I feel more math skills is growing up rapidly.
1. There are three levels.
Step 1 1 ~ 10
Step 2 1 ~ 100
Step 3 1 ~ 1000
2. You can set marks.
+, -, *
The division is not. I went out point;
3. Hidden Mode
The problem is it hides showed 0.5 seconds.
(3 level shows in 1.5 seconds)
4. Time Setting
For the busy modern man. The time setting is 10 seconds.
Suggested in the previous section shows a list of problems.
I've put on a 'little effects.