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

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

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

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

Can you go through this maze so that the numbers you pass add to exactly 100?

problem

Favourite

### Factor Lines

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

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

Favourite

### The Dice Train

This dice train has been made using specific rules. How many different trains can you make?