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Each time you visit the NRICH site there will be some activities which are 'live'. That means we are inviting you to send us your solutions and we will publish a selection of them, along with your name and your school's name. If you'd like to know more about what we're looking for, read this short article.
The last day for submitting solutions to these live problems is Monday 27 November.
Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?
Why do you think that the red player chose that particular dot in this game of Seeing Squares?
An activity centred around observations of dots and how we visualise number arrangement patterns.