Dwight has 3 baseball cards, and Ellis has 9 baseball cards. If Dwight and Ellis put their baseball cards together and then divide them up equally, how many will each one of them have?
A balance diagram going from 1 to 9. The mean is 6. Circles are above 3 and 9.
3
6
9
12
3+9=12. Since they put their cards together, they have 12. When you divide them equally, you have to divide by 2 because there are 2 people. So 12/2=6.
