9.  The wise one.  She’s familiar with all of her numeral/digital ancestors 1, 2, 3, 4, 5, 6, 7 & 8.  Yes, 9 is the youngest child, even though she looks like she’s older, 1 came 1st!  While WE are at it, let’s not discount 9’s understanding of 0/zero/NOthing.  Pure and simple, 0, zero or O are [...]