Subtraction math game

## Description

Subtraction math game is also designed for player to study and play with numbers. The game's purpose is help player to improve subtraction calculation competence and reaction speed. subtraction math game is very exciting and interesting , we believe that your child will love calculation by playing this game!

Main function:
1\. Very interesting game to answer by drag correct number to the question.
2\. Subtraction game is general game and support iPhone, iPod touch and iPad.
3\. Game including 4 levels on iPhone and 5 levels on iPad, all number is random to select and every time create different question and answer.
a. First level have 4 questions and the number in question is from 0-10.
b. Second level have 9 questions and the number in question is from 0-20.
c. Third level have 16 questions and the number in question is from 0-30.
d. Fourth level have 25 questions and the number in question is from 0-40.
e. Fifth level have 36 questions and the number in question is from 0-50.
4\. As an award, after pass a level you can touch screen to play gift. You can select play again or play next level after player pass this level.
5\. The game have time left tips and scores tips, after user finish all levels, the game will give the game scores.
6\. Support background music switch on and off in main play screen.

Thanks for your playing and welcome to give me good suggestion.