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
Favourite
Fruity totals
Age
7 to 16
Challenge level
In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
problem
Crossing the bridge
Age
11 to 18
Challenge level
Four friends must cross a bridge. How can they all cross it in just 17 minutes?
problem
Favourite
Connect three
Age
11 to 16
Challenge level
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?