2007-08-25 10:00:30 · 5 answers · asked by dogcutecat 2 in Science & Mathematics ➔ Mathematics
Abacus - One way to use it is to treat each string of beads as a digit, i.e. a one's place string, a ten's place etc. Then when you add numbers roll each column over like it was an odometer.
2007-08-25 10:04:30 · answer #1 · answered by chasrmck 6 · 0⤊ 0⤋
An ABACUS.
Ask someone in China!! they still use them a lot for business calculations.
2007-08-25 17:06:15 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋
It's an abacus or a soroban(in Japan).
I would google it to find out how to use it.
2007-08-25 17:33:57 · answer #3 · answered by steiner1745 7 · 0⤊ 0⤋
It's an abacus.
Don't remember how to use one. You can probably google the name to find out.
2007-08-25 17:03:35 · answer #4 · answered by thomasoa 5 · 1⤊ 0⤋
Abacus??
2007-08-25 17:03:52 · answer #5 · answered by Sal*UK 7 · 1⤊ 0⤋