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Visit this site: http://www.abacusmaster.com/

Author:Shabeeb Mohammed
Description: AbacusMaster sells a 17-rod soroban abacus and interactive tutorial software that covers abacus addition, abacus subtraction, abacus multiplication, and abacus division with more than hundred animated examples.

Levels: Elementary
Languages: English
Resource Types: Manipulatives, Instructional Packages/Games
Math Topics: Arithmetic/Early Math

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