The Chinese abacus.
An Abacus
it is a counting frame with beads. go here to see it http://www.kidestore.co.uk/images/images_big/melissa_and_doug_abacus.jpg
Abacus, also known as a counting frame, is used (mainly) in Asia. Beads on wires, wooden dowels, etc, are representative of numbers.
An abacus is a mechanical device for performing arithmetical calculations. Abaci are usually a wooden frame with beads used to represent numbers.
An umbrella is a common device used for protection from rain. It typically consists of a collapsible canopy supported by a frame, which can be opened to shield against raindrops.
The second calculating device is often considered to be the abacus, which dates back thousands of years and was used for basic arithmetic calculations. It consists of a frame with rods or wires on which beads are moved to represent numbers and perform calculations. The abacus was widely used in various cultures, including ancient Greece, China, and the Middle East, before the advent of more advanced mechanical calculators.
A counting frame is the common name for an abacus. An abacus is a centuries old counting and calculating tool that is still widely used by merchants in Asia and Africa.
an abacus
An Abacus is a device to help do math.It is basically a frame with rods and beads in the rods.One rod will represent ones,the next tens, then hundreds,then thousands.You move the beads up when you want to add and down when you want to subtract.
A counting frame is commonly referred to as an abacus. It is a calculation tool used for performing arithmetic operations like addition, subtraction, multiplication, and division.
it is like the old method of counting it is acquired with beads