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Brain gain
![Brain gain](https://media.9game.cn/gamebase/20230730/2/18/33597ac417b5411ba8d617239a3a6fe6.jpg?x-oss-process=image/resize,w_120,m_lfit)
Train your brain with this FREE app. All you have to do is hit memorize and put the right number in the right text, easy right? Hit new problem for a new set of number and hit the check button to check your answer. No cheating or the app will catch you.
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