How to eaisly solve 2 digit multiplication

 31x21

Say you have a number like this. If you strugle with doing two digit multiplication this is a quick tutorial on how to easily solve 2 digit multiplication.

What to do is...

31x21

First of times the two ones collum numbers together and that with be the number for the ones collum.

Then times the two tens collum numbers together and that will be your hundreds answer

Then add the two tens collum digits together and that with be your tens collum number

Here is how the strategy works                                                                               No audio on the video