Z4 math

Z4是一款数学选择题测试游戏。在给定时间内击败您/朋友的分数。

Z4 is a multiple-choice test/math game. Beat your/friend score in a given time.

FEATURES

* Small download size

* Fast Launch

* Leaderboards

* 20 Achievements

* 3 Difficulty Levels (Kids, Human Being, Genius)

* Only Integer Numbers(Z)

* Unlimited 4 arithmetic operations(addition,subtraction,multiplication,division)