Here are shadows of some 3D shapes. What shapes could have made them?
Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?
If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?
This problem looks at how one example of your choice can show something about the general structure of multiplication.
This article for primary teachers discusses how we can help learners generalise and prove, using NRICH tasks as examples.
Here are some arrangements of circles. How many circles would I need to make the next size up for each? Can you create your own arrangement and investigate the number of circles it needs?
Are these statements relating to odd and even numbers always true, sometimes true or never true?
