This is our collection of games specially chosen for use in the computer room or on the whiteboard. Each explores a strategic or mathematical theme; they will work well as teacher-led class activities but are also suitable for students to play directly, as they can all be played by individuals against the computer and none require direct teacher mediation. As with all of our games, players should
be armed with a pen and paper to help to plan their strategies and record their findings as they play.

The games are listed in approximate order of difficulty.

The games are listed in approximate order of difficulty.

problem

### The Number Jumbler

The Number Jumbler can always work out your chosen symbol. Can you work out how?

problem

### Latin Lilies

In this game you are challenged to gain more columns of lily pads than your opponent.

game

### Factors and Multiples Game

A game in which players take it in turns to choose a number. Can you block your opponent?

problem

### Treasure Hunt

Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?

problem

### Matching Fractions, Decimals and Percentages

Can you match pairs of fractions, decimals and percentages, and beat your previous scores?

problem

### Missing Multipliers

What is the smallest number of answers you need to reveal in order to work out the missing headers?

problem

### Got It

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

problem

### Fruity Totals

In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?

problem

### Fractions and Percentages Card Game

Can you find the pairs that represent the same amount of money?

problem

### Magic potting sheds

Mr McGregor has a magic potting shed. Overnight, the number of plants in it doubles. He'd like to put the same number of plants in each of three gardens, planting one garden each day. Can he do it?

game

### Last Biscuit

Can you find a strategy that ensures you get to take the last biscuit in this game?

problem

### Connect Three

In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?

problem

### crossing the bridge

Four friends must cross a bridge. How can they all cross it in just 17 minutes?

problem

### All in a jumble

My measurements have got all jumbled up! Swap them around and see
if you can find a combination where every measurement is valid.

problem

### In the bag

Can you guess the colours of the 10 marbles in the bag? Can you develop an effective strategy for reaching 1000 points in the least number of rounds?

problem

### Countdown fractions

Here is a chance to play a fractions version of the classic Countdown Game.

game

### Up, down, flying around

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

problem

### Shifting Times Tables

Can you find a way to identify times tables after they have been shifted up or down?

problem

### Nine Colours

Can you use small coloured cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of each colour?

problem

### Frogs

How many moves does it take to swap over some red and blue frogs? Do you have a method?

problem

### Charlie's delightful machine

Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?

problem

### 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.

problem

### Standard Index Form Matching

Can you match these calculations in Standard Index Form with their answers?

problem

### Multiplication arithmagons

Can you find the values at the vertices when you know the values on the edges of these multiplication arithmagons?

problem

### Finding factors

Can you find the hidden factors which multiply together to produce each quadratic expression?

problem

### 3D Treasure Hunt

Some treasure has been hidden in a three-dimensional grid! Can you work out a strategy to find it as efficiently as possible?