problem
Favourite
The Deca Tree
Age
7 to 11
Challenge level
Find out what a Deca Tree is and then work out how many leaves there will be after the woodcutter has cut off a trunk, a branch, a twig and a leaf.
problem
Favourite
How Big Are Classes 5, 6 and 7?
Age
7 to 11
Challenge level
Use the two sets of data to find out how many children there are in Classes 5, 6 and 7.
problem
Favourite
Twice as Big?
Age
7 to 11
Challenge level
Investigate how the four L-shapes fit together to make an enlarged L-shape. You could explore this idea with other shapes too.
problem
Favourite
Shape Times Shape
Age
7 to 11
Challenge level
These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?
problem
Favourite
Let us divide!
Age
7 to 11
Challenge level
Look at different ways of dividing things. What do they mean? How might you show them in a picture, with things, with numbers and symbols?
problem
Favourite
Representing Numbers
Age
7 to 11
Challenge level
Find as many different ways of representing this number of dots as you can.
problem
Favourite
Remainders
Age
7 to 14
Challenge level
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
problem
Favourite
Multiples Grid
Age
7 to 11
Challenge level
What do the numbers shaded in blue on this hundred square have in common? What do you notice about the pink numbers? How about the shaded numbers in the other squares?
problem
Favourite
Eight hidden squares
Age
7 to 14
Challenge level
On the graph there are 28 marked points. These points all mark the vertices (corners) of eight hidden squares. Can you find the eight hidden squares?
problem
Favourite
Table patterns go wild!
Age
7 to 11
Challenge level
Nearly all of us have made table patterns on hundred squares, that is 10 by 10 grids. This problem looks at the patterns on differently sized square grids.