Since we can count to “10” (12) on one hand, we can use the other hand to count sets of “10”, bringing us up to “100” (144). With decimal, we’re stuck at 20, and that’s only if we’re wearing sandals.
If you’re pointing to the last phalange on both hands, that would be “110” (156) though wouldn’t it. Since it would be “10” x “10” + “10”.
We could also use this method to count to 100 in base-10 using only the first 10 phalanges of the hand.
Ok that’s me convinced. I’m on board train dozenal!
Since we can count to “10” (12) on one hand, we can use the other hand to count sets of “10”, bringing us up to “100” (144). With decimal, we’re stuck at 20, and that’s only if we’re wearing sandals.
If you’re pointing to the last phalange on both hands, that would be “110” (156) though wouldn’t it. Since it would be “10” x “10” + “10”.
We could also use this method to count to 100 in base-10 using only the first 10 phalanges of the hand.
Wait till you hear about these things called inches!