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Calculate 10x faster using Soroban (The Japanese abacus) for Flash Anzan.
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Anzan Mega Arithmetic Brain Training-Student Demo
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Impossible Challenge: Teenagers mentally calculate 100 3-digit numbers in seconds
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Multiply 10x Faster Mentally with a Soroban (Abacus). Soroban Series Part - 3
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Abacus Mental Math Demonstration - Strengthen Math Facts, Improve Focus, Concentration & Memory
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The Japanese Finger Maths – Soroban Explained! Calculate Faster than a calculator. Soroban Part - 1
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Learn to use the abacus(soroban), the Japanese way - Part 1
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Amazing abacus addition by Japanese girl, age 7
