This is the simple and most effective ancient scientific method to improve your calculating speed of numbers. This learning programme is compatible with all age groups.
Repeat a level twice a day, until you can solve that level easily.
Then go to the next level.
Within 7 days you can see the changes.
After the completion of all levels, you will be able to solve all the basic calculations and win on your fear of math.
Choose your level and start now!
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https://www.youtube.com/watch?v=43mAOzglJks
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https://www.youtube.com/watch?v=17cwAmNbzg8