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Soroban or 9 bead abacus
Author:
James Monaghan
Topic:
Addition
,
Arithmetic
,
Arithmetic Operations
Soroban or 9 bead abacus.
GeoGebra
Modified copy of Jerzy Mil's soroban.
New Resources
兩位數的位值
רישום חופשי
Select an object for a time to start a command. Light
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bewijs stelling van Pythagoras
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冷氣機的銷量
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Intro-1
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