In number work we have begun looking at repeated addition and multiplication. This is something you could begin to work on with your child, explaining that the multiplication sign (x) means groups of.
At this stage it is really important that your child can understand what the sum really means. Using concrete objects will help them to see and understand what is is they are doing. You could use coins, smarties, raisins…
Example-
3×4=?
Means 3 groups of 4
4+4+4=