problem
Favourite
That number square
Age
5 to 11
Challenge level
Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?
problem
Favourite
Which Scripts?
Age
7 to 11
Challenge level
There are six numbers written in five different scripts. Can you sort out which is which?
problem
Favourite
Rectangle Tangle
Age
7 to 11
Challenge level
The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the shapes?
problem
Favourite
Coded hundred square
Age
7 to 11
Challenge level
This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?
problem
Favourite
Maze 100
Age
7 to 11
Challenge level
Can you go through this maze so that the numbers you pass add to exactly 100?
problem
Favourite
Amy's Dominoes
Age
7 to 11
Challenge level
Amy has a box containing domino pieces but she does not think it is a complete set. Which of her domino pieces are missing?
problem
Favourite
Fraction Fascination
Age
7 to 11
Challenge level
This problem challenges you to work out what fraction of the whole area of these pictures is taken up by various shapes.
list
Convince me! - Upper Primary Students
Here are some challenges that you can work on and then see if you can convince someone that your solutions are right! Have a go!