Here are some more practice examples for you:

If you have 4 groups of 2 ducks, how many ducks do you have?
4 x 2 = 8 6 5

If you have 4 groups of 3 ducks, how many ducks do you have?
4 x 3 = 6 7 12

If you have 4 groups of 4 ducks, how many ducks do you have?
4 x 4 = 8 16 12

If you have 4 groups of 5 ducks, how many ducks do you have?
4 x 5 = 15 9 20

Isn't this easy? See now you're ready to GO ON to the next page!