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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
The number 9 is the maximum number of beads on an abacus because it is the last number in the ones place before the tens place is reached.. The abacus is a tool that was used for arithmetic in ancient times. It is composed of a frame with a series of rods or wires on which beads are strung. The beads are used to represent numbers.
The Chinese abacus
Abacus was invented by the Chinesethe abacus was also known as the first computer
The minimum number of bars on an abacus is nine. An abacus is a calculating tool that was used before the written numeral system came into use. It is still used by merchants and traders in countries in Asia and Africa.
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.
40 x diameter (12mm) of bars = 480mm
China invented the abacus .
The number 9 is the maximum number of beads on an abacus because it is the last number in the ones place before the tens place is reached.. The abacus is a tool that was used for arithmetic in ancient times. It is composed of a frame with a series of rods or wires on which beads are strung. The beads are used to represent numbers.
no that's why its a bar.
ABACUS
How did the abacus occur?
An Abacus has beads and strings.
The Chinese abacus