Mathematics Village ( Short-Cuts in Math )
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Play with numbers
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Think of a two digit number, say 42, then subtract the reverse of its digits, 24, from 42 42-24 =18 hence 18 is product of 9 also...
Vedic Maths Squaring - Fast Version
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Vedic Maths Squares - Numbers NOT close to 100
Square of Number
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How to know if the number is prime or not?
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Fastest way to square three digit numbers
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