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Solves the equations as quickly as possible to get the best score!
You think the additions are easy?
Train your brain and try to beat your friends! Solves the equations as quickly as possible to get the best score! Compare your level of mental calculation with your friends and even with the world!
What's New in the Latest Version 1.5
Last updated on Sep 19, 2016
Last update :
No more ad during the game and new UI !
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Sum Challenge
1.5 by Samuel Terroitin
Sep 19, 2016