MathTest_III app for iPhone and iPad

bjective :
The objective of this game is to help learn subtraction of two single digit numbers.
Scope :
Children in the age Group : 1 to 6 years
Description :

This maths based game helps user to learn subtraction of two single digits. In this game in all total there are 20 non-repeatative, random questions which user has to answer within 10 seconds. For each correct answer user is rewarded one point and if user fails to answer a particular question within 10 seconds or gives wrong answer then user is awarded 0 point for that question. If user give wrong answer then right answer is displayed before the next question. The final score is out of 20.