Learn the how to use mental methods in your head to complete multiplication problems. Mr and Mrs Sharma can’t work out how many sausages to buy for Charlie’s birthday party. They are trying to count it out using chocolate buttons, but they are getting in a mess. This sounds like a job for Multiplication Boy! Multiplication Boy comes to the rescue, but loses his trusty number line en route. Can he find another way to work out the answer? What if he uses the commutative law of multiplication and facts he already knows? And will Mrs Sharma have any chocolate button left by the end of it all?

Originally released by BBC Worldwide Learning, 2016. Streaming video file encoded with permission for digital streaming by Infobase on July 26, 2018.

Mental Methods Multiplication (4:21); .