Multiply ANY number by 11, 111, 1111| Math Tips and Tricks

In this video, I will be explaining a super easy trick to multiply ANY number by 11, 111, and 1111. This is a very helpful and quick trick that saves a lot of time, so please subscribe to my channel for more tricks and tips!
#Mathtricks #EasyMath
Answers to the homework:
81 x 11 = 891
394 x 111 = 4334
715 x 111 = 7865
3720 x 1111 = 40920

[@PrachiShukla-bg2sm]

Is this trick only for same digit numbers like you multiplied 11(a 2 digit no.) With only 2 digit no. 111(a 3 digit number) with only another 3 digit number. So is this not applicable for problems like 5081(a 4 digit number)×111111(a 6 digit number)?

[@jorgeluismaida3996]

A very good question brother.