The 24 hour Maths Magic show took place this October. A group of maths presenters got together some mathematicians, magicians and other cool people to put on a live 24-hour long online YouTube mathematical magic show**.** Each half-hour had a different special guest sharing a mathematical magic trick, giving a total of 48 tricks for you to watch and puzzle over, and I was one of the guests!

It was a fabulous 24 hours with an amazing array of maths magic tricks. In my section, I was interviewed by maths presenter Zoe Griffiths** **and I shared the trick of how to multiply two digit numbers by 11 very quickly, and I showed how to multiply quickly by 6, 7, 8 and 9 using your hands.

Watch my Maths trick & treat here

Here is Part 1 of the 24 hour Maths Magic Show (12 hours)

Here is Part 2 of the 24 hour Maths Magic Show (12 hours)

Other special guests included:

- My Maths Appeal podcast co-host
**Bobby Seagull** - Maths YouTuber & Maths Appeal collaborator
**Tom Crawford** - Mathematician and presenter
**Katie Steckles** - Stand-up Mathematician
**Matt Parker** - Mathematician and RI Christmas Lecturer
**Hannah Fry** - Numberphile and YouTube star
**James Grime**

You can find a full list of guests, and links to their parts of the show here.

The show took place alongside Mark Watson’s 24-hour comedy show Watsonathon. Both shows were raising money for the charity Turn2Us which helps people in low-income jobs & gives out emergency grants, and the Comedy Support Act, supporting comedians and other performers who have little/no income at this time.

You can still donate on Mark’s fundraiser page.