3 out of 3
Can you build a distribution with the maximum theoretical spread?
2 out of 3
Two engines, at opposite ends of a single track railway line, set off towards one another just as a fly, sitting on the front of one of the engines, sets off flying along the railway line...
2 out of 3
How fast would you have to throw a ball upwards so that it would never land?
2 out of 3
Think of two whole numbers under 10, and follow the steps. I can work out both your numbers very quickly. How?
1 out of 3
A case is found with a combination lock. There is one clue about the number needed to open the case. Can you find the number and open the case?
1 out of 3
Calculate the fractional amounts of money to match pairs of cards with the same value.
2 out of 3
Can you work out how many cubes were used to make this open box? What size of open box could you make if you had 112 cubes?
1 out of 3
A thoughtful shepherd used bales of straw to protect the area around his lambs. Explore how you can arrange the bales.
2 out of 3
What do the digits in the number fifteen add up to? How many other numbers have digits with the same total but no zeros?
1 out of 3
Six new homes are being built! They can be detached, semi-detached or terraced houses. How many different combinations of these can you find?
