List of Mathematics Competitions – Wikipedia
Why not submit an entry for The Royal Statistical Society’s Statistic of the Year 2018? Complete a simple nomination form by 25th November; full details are available on the site. Last year’s winners are fascinating,
From MEI – Ritangle, aimed at older students. Ritangle is a maths competition for teams of A level Mathematics, Scottish Highers or International Baccalaureate students attending the same school/college anywhere in the world. Rules.
Maths Careers Creative Poster Competition. For UK students age 11-19.
The closing date is Friday 11th January 2019.
Not a conventional competition, but to challenge your able mathematicians, try Parallel from Simon Singh. All materials and resources are completely free and teachers will have access to all the student scores from the Parallelograms which are automatically marked.
Students do earn points depending on their percentage score on each Parallelogram, which in turn earns mathematical badges. There will be prizes for schools and students linked to the badges in future. Keep an eye on Parallel for the latest news.
World Maths Day is over! 7th March 2018 was the big day.
From Transum Software comes Flash tables which will present you with random questions from your chosen tables and then show the answer at the speed you select. Also from Transum, see this great Tables Collection which has several activities to try.
Try this Tables Test from tablestest.com which you can play at different levels.
BBC Skillswise though written for adults has some useful activities for students.
For a real challenge try a Find the Factors puzzle from Iva Sallay.