My mum says I hated maths when I was little. Well, I don't really remember that. All I remember, I didn't care much about maths till I've discovered in my second year of primary school, just by an accident, NEGATIVE numbers! Wohohow!
And there, I believe, it all started...

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My brother used to say he has two sisters; the beautiful one and the smart one. Well, the truth is, that my sister did some photo modelling and I am the one who knows maths. But even my pretty sister found out, she needs maths in her career. What does she do? She's a real estate agent. Calculating mortgages, insurance, working with percentages, formulas...

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Believe me or not, multiplying (and dividing) by number five and also its decimal multiples is more often needed than you might think. And you don't have always a calculator or at least some paper and pen with you, so that's when you use mental maths.

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When I went to the British museum as a part of my holidays recently, I saw there really interesting (someone would say weird) clock. And a ball which was counting there minutes by running back and forth on a special desk.
There was an information about the length of the ball's journey each year, which was 2,500 miles. That's pretty impressive. And even more impressive is - how did they calculate the length?

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Yeah, I feel always the urge to poke my eyes out when seeing someone violating maths by doing one of these following mistakes...

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