Or search by topic
We had a variety of solutions sent in with different explanations. Here's the first that came to us and it's from Y6B from Newton Primary School:
Abhishek got into algebra and sent in this neat solution.
Hafizur from Stepney Green Maths and Computing College London, also sent in a good explanation.
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?
How many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each other in any direction?