4 ms·
Slightly more efficient, and still easy to do, is to use one hand for 0-9 (thumb counts as five), and the other for 0,10,20,...,90. Easy counting, setting, and
by mzl 16y ago
Slightly more efficient, and still easy to do, is to use one hand for 0-9 (thumb counts as five), and the other for 0,10,20,...,90. Easy counting, setting, and reading of the current number.
- RiderOfGiraffes 16y agoEr, that's exactly what I meant. Sorry if I didn't make it clear, but I never considered that someone would believe I counted to 10 on one hand, then another 10 on the other.