Hmm let's think, so if he went to the store to buy 5 jars of sweets which is a Lot of sugar to eat and then they were £10.00 Now that's a lot of money so I would just you do £10.00+£10.00+£10.00+£10.00+£10.00=£50.00 WOAH! That's a lot of sweets to last a hole year! Anyway I hope that helps ❤