Adept Mental Math

Learn little tricks to solve big math problems with help from Adept Mental Math!

Solve seemingly difficult math problems without reaching for a calculator... or even a pencil.

Impress your teachers (or impress your students...) by pulling answers out of what seems to be thin air.

The multiplication section includes (among other types) problems about how to multiply...

Any two double-digit numbers,

Any number by 11,

Any number by 25,

Any number in the 90s,

Any number by 101,

Any number by 125

Adept Mental Math is great for studying for standardized tests, preparing for mathematics competitions like Number Sense, or simply improving your confidence and speed with mental math.