2 out of 3
Can you make square numbers by adding two prime numbers together?
2 out of 3
This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?
2 out of 3
Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you work out the rule for each light?
2 out of 3
Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!
2 out of 3
This challenge combines addition, multiplication, perseverance and even proof.
2 out of 3
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 rhombus.
3 out of 3
3 out of 3
Can you dissect an equilateral triangle into 6 smaller ones? What number of smaller equilateral triangles is it NOT possible to dissect a larger equilateral triangle into?
3 out of 3
Choose the size of your pegboard and the shapes you can make. Can you work out the strategies needed to block your opponent?
3 out of 3
Can you find a way of counting the spheres in these arrangements?
