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Abacus Problems

Hi! Welcome to the abacus section. Here, you can learn how to use the abacus and solve a variety of problems with the abacus.

Addition

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Subtraction

What are 5 complement problems?

  • In an abacus, each column represents a number place (ones, tens, hundreds).

  • 5 complement problems do not require you to go to the next column when adding or subtracting a number.

Link to a Youtube series where abacus basics are explained.
Link to a page where the basics of the abacus are detailed.
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