Q: What is the minimum number of bars on an abacus?

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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 .

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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.

ABACUS

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.

9

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.