Primary Toughnuts
Window Frames
This task encourages you to investigate the number of edging pieces and panes in different sized windows.
Sticky Dice
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?
Diagonal in a Spiral
Investigate the totals you get when adding numbers in threes on the diagonal of this pattern.
Painting Possibilities
This task, written for the National Young Mathematicians' Award 2016, involves open-topped boxes made with interlocking cubes. Explore the number of units of paint that are needed to cover the boxes and the small cubes that would fit inside each one.
It's Times Again
Which way of flipping over and/or turning this grid will give you the highest total? You'll need to imagine where the numbers will go in this tricky task!