Use these head, body and leg pieces to make Robot Monsters which are different heights.
On a farm there were some hens and sheep. Altogether there were 8 heads and 22 feet. How many hens were there?
This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?
Four bags contain a large number of 1s, 3s, 5s and 7s. Pick any ten numbers from the bags above so that their total is 37.