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.
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.
ball sack
You can use an abacus to add and subtract quantities of beads by moving the them around. This can in turn help to solve equations involving counting numbers.
The numerical value represented on the abacus depends on the position of the beads. Each column on the abacus represents a place value, ranging from units to thousands. By moving beads up or down within each column, different numerical values can be represented.
An Abacus has beads and strings.
6
Beads
25=20,21,23
sorry guys not really sure. :/
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.
An Abacus
It has alote of rows with beads in them.
ABACUS - Abundant Beads, Addition and Calculation Utility System
wood parrelel rod and beads
beads
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.