Add new comment

Permalink Submitted by Anonymous on December 20, 2015

Hi all if you use the numbers 221 & 122 it does not result in 495 but rather in 99.

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 Abel Prize 2020

This year's Abel Prize has been awarded to Hillel Furstenberg and Gregory Margulis.
Fighting the coronavirus

As the world prepares for the worst, we explore the maths that can help us stop a pandemic.
Squashing the curve?

A new study into Covid-19 suggests that flattening the curve will take longer and harder measures than previously hoped.
Myths of maths: The golden ratio

The golden ratio has many amazing properties. But is it really a secret of nature and the epitome of beauty?
Myths of maths: The four colour theorem

It's one of mathematics' most famous results: every "map" can be coloured using at most four colours. What it doesn't usually apply to, however, are real maps.