The average temperature of six cities is 5$^\circ$C. What is the average temperature when two cities are added?
What happens when you add a three digit number to its reverse?
I added together some of my neighbours' house numbers. Can you explain the patterns I noticed?
Five children are taking part in a climbing competition with three parts, where their score for each part will be multiplied together. Can you see how the leaderboard will change depending on what happens in the final climb of the competition?
Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick any ten numbers from the bags so that their total is 37?
