This is simple Mathematical Puzzle.
It randomly generates a questions,
Player's goal is to answer the question in a given time,
If player fails to answers negative score points are given.
Action-adventure
Simulation Business
Role Playing
Sports Competition
Casual Intelligence
Card Strategy
Music Rhythm
Text Puzzle
Flying Shooting
Love Development
Business Office
Newsletter Social
Life Entertainment
Online Shopping
Practical Tools
Travel
Financial Management
Educational Learning
Information Reading
Sports and Health