Please practise your multiplication facts at home. By the end of Year 3, children need to be fluent in the 2,5,10,3,4 and 8 times tables. Being fluent in these facts, helps children to understand the concepts being taught rather than using working memory to calculate facts.
You can use Times Table Rock Stars to learn these facts or you could create your own games.
I have attached a workbook if you would like non-screen ideas.