List of lessons

Lessons Mental arithmetic of the lowest common multiple

Summary of the program

LCM mental calculation represents the development and application of "mental calculation of numeric decomposition", by which to find the least common multiple using the fragments decomposed from the numbers. Thus, once you became able to do the "mental calculation of numeric decomposition" to a certain degree, try to find the least common multiple in your head.

By the time you became able to find the least common multiple in your head, you will grow up with even higher level of your numerical sense. So, do your best.

Abilities which can be developed

A sense of numbers (ability of decomposition and composition of numbers