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.
problem
Square surprise
Age
5 to 11
Challenge level
Why do you think that the red player chose that particular dot in this game of Seeing Squares?
problem
Next-door numbers
Age
5 to 7
Challenge level
Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?
problem
Favourite
How would we count?
Age
5 to 11
Challenge level
An activity centred around observations of dots and how we visualise number arrangement patterns.
problem
Favourite
Light the lights
Age
5 to 7
Challenge level
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?