In these addition, subtraction, multiplication and division games, you'll need to think strategically to get closest to the target.
Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?
The diagram illustrates the formula: 1 + 3 + 5 + ... + (2n - 1) = n² Use the diagram to show that any odd number is the difference of two squares.
There are three buckets each of which holds a maximum of 5 litres. Use the clues to work out how much liquid there is in each bucket.
How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order?
In this 100 square, look at the green square which contains the numbers 2, 3, 12 and 13. What is the sum of the numbers that are diagonally opposite each other? What do you notice?
