10 simple mathematical tricks

Such a school we were not taught. What a pity! If you are all bad at math - it's not your fault. We were just not taught in school mathematical trick with which any calculations are elementary.

Website publishing methods by which you can easily count in mind.



Multiplication of large numbers in ume





How to learn the multiplication table on 9





Method butterflies for addition and subtraction drobey





Multiply by 11 (for example, number 32)





How to recall the number of Pi





Multiplication Table 6, 7, 8, 9 on your rukah





How to find the percentage of chisla





How to find a fraction of the whole chisla





Translation degrees Fahrenheit to degrees Tselsiyu







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