The tasks in this feature are all about practising times tables, but with a difference... All too often, we are given a question and asked to work out the answer. By turning this around and starting from the answer, as these problems do, we hope you will be more curious to explore and make connections.

The last date for sending in solutions is Monday 13 May.

The last date for sending in solutions is Monday 13 May.

How will you work out which numbers have been used to create this multiplication square?

How many starfish could there be on the beach, and how many children, if I can see 28 arms?

Find a great variety of ways of asking questions which make 8.

Can you complete this jigsaw of the multiplication square?

These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

This task offers an opportunity to explore all sorts of number relationships, but particularly multiplication.

Your vessel, the Starship Diophantus, has become damaged in deep space. Can you use your knowledge of times tables and some lightning reflexes to survive?

Can you fill in this table square? The numbers 2 -12 were used to generate it with just one number used twice.

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