I'm a big believer in trying to make sure my pupils know their times tables and always test them at the start of a year and address any gaps where necessary. Apps on mobile phones have proven fantastic for getting pupils to improve their times tables, many are free, there are loads to choose from and they can practise when they have time to kill, on a bus for example. I then retest the pupils every couple of weeks and it is immediately obvious who is practising and who isn't. I have uploaded the tool I use to test them, it uses ActivExpression handsets so will only be of use if you have them. It has a set of questions up to 12 x 12 that will appear randomly on the handsets and on another page the corresponding divisions.
Click to download
Click to download