Multiply by 11 Quickly #math

Learn how to multiply 2 digit numbers by 11 easily. Basically you split the original nymber. Add the two digits and place this number in between the two original numbers.
It works great for numbers like 12 x 11, 45 x 11, 56 x11.

[GRAHAMAUS]

Or just multiply by 10 (a shift left) and add the original number. Honestly, these "tricks" take far longer and you have to remember each trick individually. Pointless.