By the end of Year 4 the children should know all the times tables facts up to 12 x 12.
Times Tables Rockstars is a good way to practise tables facts. Your child's TTRockstars log-in details are stuck in the front of their Reading Record.
There are many websites that can help your child improve their knowledge of the times tables. Here are a few that I recommend.
If your child can learn the 36 Essential Facts, they will be able to work out all the other facts. Please do practise the times tables at home with your child.