problem
Favourite
Plants
Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?
game
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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
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
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Shape Times Shape
These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?
game
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Spiralling Decimals
Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
problem
Favourite
Maze 100
Can you go through this maze so that the numbers you pass add to exactly 100?
problem
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Factor Lines
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.
problem
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Two and Two
How many solutions can you find to this sum? Each of the different letters stands for a different number.
problem
More children and plants
This challenge extends the Plants investigation so now four or more children are involved.
problem
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The Dice Train
This dice train has been made using specific rules. How many different trains can you make?