7/2/2023 0 Comments Abacus beads meaningThe number 8, for example, is represented by moving one heaven bead (worth 5) downward toward the crossbar and three earth beads (worth one each) upward toward the crossbar. Beads are then slid upward or downward to represent a number. To operate, an abacus is placed flat and all beads are pushed towards the outer edges, away from the crossbar. Beads on the third rod from the right have their value multiplied by 100, so that each earth bead represents 100 and each heaven bead stands for 500, and so on. On this rod, each earth bead represents 10 and each heaven bead stands for 50. Beads on the second rod from the right, however, have their value multiplied by 10. On this rod, each earth bead is one and each heaven bead is five. Beads on the vertical rod farthest to the right have their values multiplied by one. Each rod represents columns of written numbers. Each heaven bead has a value of five times that of an earth bead below it. The numerical value of each bead depends on its location in the abacus. This has to be done every time before starting a new calculation. This can be done by placing the thumb and the index finger on the horizontal crossbar lightly and moving it across from left to right. Before using the abacus make sure that all the beads are in the neutral position representing zero. Lower beads are moved up by the thumb finger and for all others bead movement the index finger is used. Moving the bead towards the reckoning rod is used for addition and moving away for subtraction. The beads are moved with the help of the thumb and the index finger. Counting on abacus is done by moving the beads up and down the rods. The beads above the crossbar are known as heaven beads or upper beads, and those below the crossbar are called earth beads or lower beads. Each rod can represent 10 different numbers from 0 to 9.Ī horizontal crossbar perpendicular to the rods separates the abacus into two unequal parts. On the other hand, the Japanese abacus, also known as the “soroban” consist of 4 beads below and 1 bead above the reckoning bar. It can be used to count upto 16 different numbers from 0 to 15. The Chinese abacus also known as ‘saunpan’ consist of 5 beads below and 2 beads above the reckoning bar. Two of the most commonly used abacus are the Chinese and the Japanese. Each rod consists of beads which are moved up and down with the help of fingers. It consists of a rectangular frame, with multiple rods. It can also be used to extract the square root and the cubic root. It is still widely popular in Japan, China, the Middle East and Russia.Ībacus is used to perform all the basic arithmetic calculations like addition, subtraction, multiplication and division. It’s a simple device which originated in Babylon about 5000 years ago. “ABACUS” is a Latin word derived from the Greek word ABAX which means a calculating table. So, today let’s dig in a bit deeper to know more about it. Introduction of abacus at the apt age is important as it would then only help the child to master it. It is said “Go down deep enough into anything and you will find Mathematics”.Ībacus learning makes math calculation process easy and interesting. Calculations and playing with numbers are part and parcel of our everyday lives. Mathematics is the subject most of us love to hate.
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