This game has 4 modes "+","-","x","?"
Every mode you should answer the math questions in some time,and the time will be shorter every 5 levels.
"?" is random mode,it means the questions will be "+","-" or "x" mode.
Yeah,so easy to play,but how many levels can you pass.
Join the leaderboard,and invite your friend to play together!!
Last updated on 2015年07月18日
此版本包含小幅错误修复和常规改进。请更新至最新版本，以获得更佳体验。
