We worked out the digital roots of each multiplication table from 2 to 9.  This is how we worked it out!

Example:

2×9=18  we can’t have a double digit so we split it to make an adding calculation 1+8= 9.

We then  used the number pattern to make interesting visual displays.  You have to be experts at multiplication to successful create a pattern.

So we must be multiplication experts as our displays were perfect😀.