Numbers Game Countdown简介

Countdown numbers game, use addition, subtraction, multiplication and division to make target number Set game type (number of numbers to be used), and game difficulty and try to beat the computer You can set input method, full equation or step by step with each step calculated on the button 倒计时数字游戏，用加法，减法，乘法和除法，使目标号码 设置游戏类型（数字号码被使用），并且游戏难度，并尝试击败电脑 可以通过与步骤上的按钮计算的每个步骤中设置的输入法，全方程或步骤