problem
Favourite
Plants
Age
5 to 14
Challenge level
Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?
game
Favourite
Factors and multiples game
A game in which players take it in turns to choose a number. Can you block your opponent?
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
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?
game
Favourite
Spiralling decimals
Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
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
Factor lines
Age
7 to 14
Challenge level
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
problem
Favourite
Two and two
Age
7 to 16
Challenge level
How many solutions can you find to this sum? Each of the different letters stands for a different number.
problem
More children and plants
Age
7 to 14
Challenge level
This challenge extends the Plants investigation so now four or more children are involved.
problem
Favourite
The dice train
Age
7 to 11
Challenge level
This dice train has been made using specific rules. How many different trains can you make?