**Abacus Tuition Singapore**

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**Abacus Tuition – What is Abacus?**

An abacus, also called calculation rack, is a mechanism with beads that, depending on the type of abacus, can be moved back and forth in the horizontal or vertical direction to perform sums and other mathematical calculations. It is a precursor to the calculator and the computer. In the Western world, the abacus is nowadays mainly used as a didactic tool for learning to count. In the Far East, in particular, it is still used in stores and such.

**All beads represent the same unit**

One speaks of an abacus if the beads always represent units. An abacus has horizontal bars. Sometimes the beads per 5 or 10 have the same color to make a structure visible to the students. In education, an abacus is often called a calculation rack.

**Beads represent a power of 10 depending on the row**

Operations with large numbers can be calculated with an abacus. The beads around the different vertical bars represent hundreds, tens or units. There may also be beads that represent five times as much. So 9 beads per row are required, resp. 1 and 4. The numbers can also always be one more so that some intermediate results can be represented in two ways.

In education, this makes the principle of borrowing and redeeming in figures concrete and visual. It is a kind of abacus that the Romans often used at school.

**History**

The Roman abacus had 1 bead above and 4 below the center beam. The Japanese abacus (soroban) also has such a configuration.

Addition, subtraction, multiply, divide, and square roots have mechanized by algorithms possible in which intermediate results may be memorized on any other part of the abacus. Skilled abacus calculators can perform many calculations faster than people using a pocket calculator.

In Tibet, since the Yarlung Dynasty ( 7th – 9th centuries ) until 1959, an abacus with loose stones has been used for the collection of taxes, on the one hand by the government of historic Tibet and on the other by the large Tibetan monastic organizations. As for calculating stones, whole and half apricot kernels of black and white stone porcelain shards, beans and sticks were used.

An abacus (plural: abaci), also called abacus or calculation rack, is a mechanism with beads that, depending on the type of abacus, can be moved back and forth in the horizontal or vertical direction to perform sums and other mathematical calculations. It is a precursor to the calculator and the computer. In the Western world, the abacus is nowadays mainly used as a didactic tool for learning to count. In the Far East, in particular, it is still used in stores and such.

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