The 12 Simple Arithmetic Methods You Can Begin Now

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These are 12 simple arithmetic methods you can start now!

1.Birthdays: If there are 21 people in a room the chance that any two of them will have the same birthday is actually higher than 50%. Now you can use statistics to impress your friends.simple-easy-arithmetic-methods-you-can-start-now-pics-pictures-images-photos (1)