The Flying Colours Maths Blog: Latest posts

Free for all Friday

It's that time of the week again! What's been on your mind? What's giving you a headache? As always, drop your questions in the comments box and I'll get back to you as swiftly as I can!

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Where to start when you don't know where to start

Right! That's it. I'm mad as hell and I'm not going to take it any more. If one more student looks at a question and says "I don't know where to start!" I'm going to... I'm going to... I'm going to FROWN and look at them VERY CROSSLY. Because I

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Secrets of the Mathematical Ninja: squares near 50.

Difficulty: ** Impressiveness: **** (Many thanks to Swar for pointing me at this one - and challenging me to explain it well!) It's surprisingly easy to square numbers near 50. Here's the recipe: 1. Find the difference between your number and 50. (If you're looking at 46, it'd be -4.

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Free for all Friday

It's that time of the week again! What's been on your mind? What's giving you a headache? As always, drop your questions in the comments box and I'll get back to you as swiftly as I can!

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Happy $\pi$ day!

Happy Pi Day! mu-tant cow pi by janemariejett In the American date format, today is 3.14 - a pretty good approximation to $\pi$, which (as any fule kno) is the ratio between a circle's diameter and circumference. It's also the focus of most of the jokes about maths, because -

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Squaring halves (and fives): Mathematical Ninja Secrets

The trick: someone says 'what's 7.5 squared?' and - mentally squaring in a flash - you say: 56.25. Squaring halves Squaring halves is really easy if you know your times tables. Here's the method: Take your number and find the whole numbers immediately above and below. If you're trying to

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Free for all Friday

It's that time of the week again! What's been on your mind? What's giving you a headache? As always, drop your questions in the comments box and I'll get back to you as swiftly as I can!

Read More

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