Do you think you are the best at mental calculation? You aren't that good, ...
Do you think you are the best at mental calculation? You aren't that good, but you like challenge yourself? You are nostalgic of your primary school's mathematic session? So, this app is for you.
Train your brain and challenge all your friends. Solves the equations as fast as possible to get the best score. Be the king of additions, and prove to the word you are the best.
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