Mental maths is when you do calculations in your head instead of writing them down. Sometimes, it's just as quick to do calculations in your head as it is to write down every step. You can add and ...
A 14-year-old math prodigy from India, Aaryan Shukla, broke six Guinness World Records in 24 hours with his lightning-fast mental calculations. Known as a human calculator, Aaryan uses daily practice ...
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