I am French and we cont extending our fingers from a closed fist. Typically to 2x5=10.

When I was a kid I relized that I can count the fives on the right hand (1 finger for each 5 on the left), which brought me to 25.

It is only when I was traveling in Asia and watched people on markets that I realized that I can use my thumb to count my 12 other finger phalanges, which brought the total to 144. You just need to know your multiplication table of 12 :)