Multiplication and division

Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?

Skippy and Anna are locked in a room in a large castle. The key to that room, and all the other rooms, is a number. The numbers are locked away in a problem. Can you help them to get out?

After training hard, these two children have improved their results. Can you work out the length or height of their first jumps?

How many ways can you find to put in operation signs (+, −, ×, ÷) to make 100?

Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!

What is the smallest number of answers you need to reveal in order to work out the missing headers?

Tom and Ben visited Numberland. Use the maps to work out the number of points each of their routes scores.

What could be the scores from five throws of this dice?

Two numbers can be placed adjacent if one of them divides the other. Using only $1,...,10$, can you write the longest such list?

What happens when you add the digits of a number then multiply the result by 2 and you keep doing this? You could try for different numbers and different rules.