Anita Ponsaing receives funding from the ARC Centre of Excellence for Mathematical & Statistical Frontiers (ACEMS). Most people will probably remember the times tables from primary school quizzes.

I like things that come in twos, I like ears and elbows and knees, I like pairs of gloves and turtle doves, I like wings and wellies and water skis. When you’re counting slippers or flippers or shoes ...

Knowing your 4 times table is really helpful with your mental arithmetic, which will be handy in everyday life. If you know your 2 times table, then you’ll be able to crack the 4s in no time.