11 Math Hacks You Never Learned In School

7. Quickly multiply large numbers by 11 by separating them and adding the sum of both in the middle

math hacks multiply 11

via: wonderhowto

8. Learn how to multiply large numbers in your head

This comes in handy when a calculator is not present

math hacks large numbers in your head

via: imgur

9. Add and subtract fractions quickly using the butterfly method

Fractions can get tricky. This is very helpful!

math hacks fractions

via: imgur