sanitation@lemmy.today to interestingasfuck@lemmy.world · 18 days ago

Mental arithmetic competition of the 2026 Zhongzhou Cup

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Mental arithmetic competition of the 2026 Zhongzhou Cup

sanitation@lemmy.today to interestingasfuck@lemmy.world · 18 days ago

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Fedegenerate@fedinsfw.app
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18 days ago
Chisanbop, kungfu math, or finger abacus if you want to read more.

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