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BrainTwister #117: Sick sevens
Regulars
Mathematics
Why we all need a little festive pedantry when it comes to snowflakes
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Mathematics
The 19th-century maths that can help you deal with horrible coffee
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BrainTwister #92: Squares in piles
News
BrainTwister #90: Discount disco
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Mathematics
The surprisingly useful mathematical patterns in some real-world data
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BrainTwister #85: Factorial squares
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Mathematics
The maths hack that can help you count things
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BrainTwister #71: Dip die
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BrainTwister #71: Dip die
News
Mathematics
This versatile piece of maths can help you solve all kinds of problems
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BrainTwister #69: Backward drops
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