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Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe
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Chinese Traditional Calculator, Old Abacus On White Background Stock Photo, Picture and Royalty Free Image. Image 43067683.
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Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe
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:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/53504315/GettyImages_630805159.0.jpg "I learned how to do math with the ancient abacus — and it changed my life - Vox")
I learned how to do math with the ancient abacus — and it changed my life - Vox
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