NSPCC Number Day is a maths-inspired fundraising event where schools across the UK raise money for the NSPCC. 

On this day, children take part in a number of maths activities and are encouraged to make a donation and wear an item of clothing with a number on it. The funds raised from Number Day will support vital NSPCC services such as 'Speak Out. Stay Safe', which visits primary schools across the UK to teach students all about the dangers of abuse and what they can do to help.