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The article discusses how the Soroban can help children understand the decimal system. Topics include Soroban is a Japanese abacus, which can help children to understand number concepts and visually demonstrates the decimal system; It enables you to add, subtract, multiply and divide much faster and more confidently than you can with a paper and pencil, and, with practice, as quickly as a calculator; and the Soroban consists of a frame, a beam, and beads on digit rods.