Addition and digits for kids

This app helps children to learn the digits (numbers 1 to 9), counting and the addition (up to 9), explaining the magic of numbers with 3 clarity levels, full of sounds and animation.
Last two levels are to check the person's knowledge. 
The results are shown in statistics table, grouped by levels: number of touches, type of touch, and the result ratio.

How to use the bonuses: Tap on screen, to change colors (to random); Scroll the screen, to change colors and saturation.
The correct answer may give the bonus.

Turn the sound on and off by special button at any moment. 
Try other buttons, except exit. 
Tap the screen to speed-up the animation.