![]() Some expert abacus users can manipulate the beads faster than someone entering numbers into a calculator. Architects working in some parts of the world use abaci to measure dimensions and plan designs. Teachers may use abaci with young students to help them learn place value and other fundamental math concepts. Blind people often find abaci useful because these tools enable them to manipulate the beads and feel them to find answers to math problems. Some people still use the abacus to calculate sums.
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