| Page 11 | plus.maths.org

Puzzles

Which fits best - a square peg in a round hole, or a round peg in a square hole?

Try your hand at some tricky trig!

Puzzle page: The Möbius Challenge

Set your beloved heart a-flutter with this mathematical valentine

Count up your booty of jewels and potions!

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Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

The real numbers and Cauchy sequences

We take the real numbers for granted, but what are they really?
Maths in a minute: The axioms of probability theory

Take a quick trip to the foundations of probability theory.
The maths of randomness

Randomness is surprisingly hard to define. Fortunately the mathematical language we use to describe it is beautifully well defined.
Clocking the schedule

The way many football leagues schedule their fixtures can lead to unfair effects — and unsolved maths problems!
Arithmetic billiards

Need to find the least common multiple or greatest common divisor of two numbers? A billiard table of the right proportions holds the answers!

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