Question

Dylan has 200 marbles. If Dylan has 10 times as many marbles as Robert, write an equation that shows how many marbles Robert has. Use r to represent the number of marbles of Robert has.

Answer 1

                                                   200/10 = R
 If you use division to solve this problem you will come out with 20 marbles. TO check you multiply 20 and 10.

Answer 2

200x10=r r=2000. So Robert has 2,000 marbles