Cool And Simple Math Tricks (9 pics)

Multiplying large numbers in your head
Learning the nine times table

The butterfly method for adding and subtracting fractions

Multiplying by 11 (example: 11×32)

Memorizing Pi

Finding the percentage of a number

Finding a fraction of a whole number

Converting Celcius to Farenheit and vice versa

Multiplying by 6, 7, 8, and 9 using only your hands