Children will have spellings, reading and talk homework weekly.
By the end of Year 4 I would expect all children to know their times tables.
I would encourage you to practice these with your children a couple of nights a week.
Your children will also have spelling test every Friday and these need to be practiced regularly, children need to write them out in their books and their spelling books will be checked.
As part of their reading progression it is very important for children to read at least 5 times a week which needs to be evidenced in their reading record books.