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可在安卓获取Cool Math的历史版本
学会加，减，乘和除：以自己的节奏练习
Learn to add, subtract, multiply and divide: Tests and study - at your own pace, easy and fun!
Practice the four basic operations of arithmetic
This is a math game for children and adults. You can practice addition, subtraction, multiplication, and division and guess all math puzzles!
Solve these arithmetic tests and pass school exams easily or refresh your skills and exercise your brain!
It's a cool math game which helps to learn basic math and arithmetic.
Be the master of math and arithmetic: practice arithmetic operations choosing from three types of tests.
You can set if you wish a different number of questions per test and time limit per test.