Chinese math tools

To add numbers, you would move beads up on the rack that corresponds with the place value of each number. The number of beads in the up position will show the sum. A number of abacus designs exist; different cultures and countries used different tools.

The Chinese abacus is the classic tool featuring five beads on the bottom and two beads on the top. Russian and Roman designs are also variations of the abacus. The Japanese abacus, called the soroban, is still used today in modern cultures to help people perform mental math.

Some people still use the abacus to calculate sums. Blind people often find abaci useful because these tools enable them to manipulate the beads and feel them to find answers to math problems. Teachers may use abaci with young students to help them learn place value and other fundamental math concepts.

Architects working in some parts of the world use abaci to measure dimensions and plan designs. Some expert abacus users can manipulate the beads faster than someone entering numbers into a calculator. The Japanese abacus is a common tool for mathematical processes. Nebo supports writing and drawing with both active and passive pens. Cloud sync requires a free MyScript account.

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