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Count on an abacus
The abacus is one of the oldest existing counting tools in history, older even than written numbers! It may not look complex, but it’s an extremely quick way to count numbers. Find or make an abacus and post a video demonstrating how to use it.
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The Challenge
Count on an abacus
The abacus is one of the oldest existing counting tools in history, older even than written numbers! It may not look complex, but it’s an extremely quick way to count numbers. Find or make an abacus and post a video demonstrating how to use it.
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Complete this challenge by posting your own project outcome.
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Scale a drawing with a grid
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Scale a drawing with a grid
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