To take part simply log in and play Sumdog's maths games anytime at home or school.
The contest runs from 8am local time Friday 16th June to 8pm the following Thursday 22nd June - but you can play at any time during this period.
Scores are based on accuracy, and questions tailored to your level - so everyone has a fair chance.
If you answer 100 questions you will receive an item for your Sumdog House as a reward.
You will be ranked on a leader board by the number of correct answers you give. If there's a tie, Sumdog will rank you on average answer speed.
Let's try to beat the other schools in Knowsley by getting the most correct answers.
Are you up for the challenge?