The twenty bead version, referred to by its Dutch name rekenrek, has two bars.
Before the abacus, there was no such number that existed. du
It goes by the number places.
By the user moving little beads along bars . different amounts of beads stand for different numbers .
Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.Yes, they used the abacus.
China invented the abacus .
40 x diameter (12mm) of bars = 480mm
There is no minimum number. Suppose x is a minimum number. Then x - 1 is also a number and it is smaller than x. So x cannot be a minimum number. This argument can be used for any number that is put forward as a minimum.
50* diameter of reinforcement
who discover abacus
How did the abacus occur?
disadvantage of abacus
The Chinese abacus
An Abacus has beads and strings.
The First appearance of an abacus was in Sumeria around 2700 to 2300 BC.
the history about the abacus is that 3000 years ago the chinese invented the abacus. The abacus was made of wood parrelel rod and beads.
no that's why its a bar.
Abacus is the first counting machine!
the Chinese invented the abacus
The abacus II!
the invenor of the abacus is the invenor of me
Abacus was invented by the Chinesethe abacus was also known as the first computer
No. Bars serve alcohol and the minimum age to drink alcohol in Illinois is 21, gay or straight.