1 out of 3
The challenge here is to find as many routes as you can for a fence to go so that this town is divided up into two halves, each with 8 blocks.
2 out of 3
Can you decide whether two lines are perpendicular or not? Can you do this without drawing them?
1 out of 3
On the grid provided, we can draw lines with different gradients. How many different gradients can you find? Can you arrange them in order of steepness?
1 out of 3
Imagine flipping a coin a number of times. Can you work out the probability you will get a head on at least one of the flips?
2 out of 3
This challenge combines addition, multiplication, perseverance and even proof.
2 out of 3
The Man is much smaller than us. Can you use the picture of him next to a mug to estimate his height and how much tea he drinks?
3 out of 3
How many different quadrilaterals can be made by joining the dots on the 8-point circle?
1 out of 3
Choose four consecutive whole numbers. Multiply the first and last numbers together. Multiply the middle pair together. What do you notice?
This article -useful for teachers and learners - gives a short account of the history of negative numbers.
3 out of 3
