2 out of 3
Which countries have the most naturally athletic populations?
2 out of 3
Can you find ways to put numbers in the overlaps so the rings have equal totals?
2 out of 3
Play around with sets of five numbers and see what you can discover about different types of average...
2 out of 3
Use properties of numbers to work out whether you can satisfy all these statements at the same time.
3 out of 3
Imagine you have an unlimited number of four types of triangle. How many different tetrahedra can you make?
3 out of 3
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?
3 out of 3
Can you find a cuboid that has a surface area of exactly 100 square units. Is there more than one? Can you find them all?
3 out of 3
Use a single sheet of A4 paper and make a cylinder having the greatest possible volume. The cylinder must be closed off by a circle at each end.
3 out of 3
Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its vertical and horizontal movement at each stage.
3 out of 3
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
