Master these 11 math tricks to simplify everyday tasks and impress your friends.

Some of these tips (in particular the integer division tricks at the end) are arcane wizardry — only to be used when the situation really calls for it.

Impress your friends with these math party tricks that are sure to wow the crowd.

Unlock rapid mental math skills with abacus tricks! Learn basic addition, subtraction, and advanced techniques using easy examples. Boost concentration and speed.