Interactive Abacus

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📝 Description

Interactive Abacus is a practice and quiz tool for learning place value with an abacus model. Students read bead positions, choose correct values, and strengthen base-ten understanding. It is suitable for primary classrooms and home math practice.

📋 Instructions

Choose practice or quiz mode, read the abacus display, and answer the place-value question. Use repeated rounds to improve speed and accuracy.

🎓 Learning Guide: Interactive Abacus

Learning focus: Abacus positions represent place values, so a bead’s column matters as much as its count.

Try this investigation

Read each column separately and name the place value it represents.
Write the displayed number in expanded form before submitting an answer.
After a correct response, explain how changing one bead changes the total value.

Check your understanding

How does the same bead movement represent a different amount in another place-value column?

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