page
Search
problem
Square and Cube
14 to 16
The square of a positive number is twice as big as the cube of that number. What is the number?
article
Developing Number Fluency - What, Why and How
In this article for primary teachers, Lynne McClure outlines what is meant by fluency in the context of number and explains how our selection of NRICH tasks can help.
problem
Sticky Dice
7 to 11
Throughout these challenges, the touching faces of any adjacent dice must have the same number. Can you find a way of making the total on the top come to each number from 11 to 18 inclusive?
problem
Favourite
Round the Three Dice
7 to 11
What happens when you round these three-digit numbers to the nearest 100?
problem
Favourite
Three Ball Line Up
5 to 7
Use the interactivity to help get a feel for this problem and to find out all the possible ways the balls could land.