4 Hmmmm, a trick question. I assume that if YOU took one, all YOU would have is one.
Imagine you have apples that you have put into groups, with each group having 5 apples in it. If you take one group, you have 5 apples. This is the same as 5 x 1. 5 is how many apples per group you have. 1 is how many groups you take. If you take two groups of apples, you have 10 apples. This is the same as 5 x 2. Now consider if you don't take any groups of apples. How many apples would you have? You wouldn't have any. This is the same as 5 x 0.
2 apples.
5 apples
you have 2 apples
two apples
3 apples
You would have 2 apples 5 - 3 = 2
You have 3 apples! You have 3 apples!
two because if you take one, you still have both of them
You would still have 5
5 apples because you took the 3 away
2 apples