### The Number Jumbler

### Your number is...

### Treasure Hunt

### Number Lines in Disguise

### Remainders

### Sieve of Eratosthenes

### Odds, Evens and More Evens

Alison, Bernard and Charlie have been exploring sequences of odd and even numbers, which raise some intriguing questions...

### Fractions Rectangle

### Parallelogram It

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

### Up, down, flying around

Play this game to learn about adding and subtracting positive and negative numbers

### Summing Consecutive Numbers

15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?

### Reflecting Squarely

### Shady Symmetry

### Picturing Square Numbers

Square numbers can be represented as the sum of consecutive odd numbers. What is the sum of 1 + 3 + ..... + 149 + 151 + 153?

### Square It

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

### Perimeter Expressions

### More Number Pyramids

When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...