In the time of smartphones and tablets, almost everyone has a calculator within arm’s reach. But what happens when you don’t? How will you calculate basic arithmetic on the fly? Learn a few of these mental math tricks to improve your math skill and impress your friends.
For more advice and help with math, visit Noodle’s math topic page!
Use this quick and dirty tip to quickly multiply double digit numbers by 11.
Ready to get out of the restaurant? Try this trick to calculate tip quickly.
Find out one of the most important tricks in mental math.
Think you can add quickly? Try using this technique to add faster.
Double down on addition, and quickly add double digit numbers in your head.
Don’t ever get short-changed again by figuring out this mental math skill.