Multiplying large numbers in your head
1
Learning the nine times table
2
The butterfly method for adding and subtracting fractions
3
Multiplying by 11 (example: 11×32)
4
Memorizing Pi
5
Multiplying by 6, 7, 8, and 9 using only your hands
6
Finding the percentage of a number
7
Finding a fraction of a whole number
8
Converting Celcius to Farenheit and vice versa
9
~Source: FunFunky ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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