Posted by Mack on Friday, May 11, 2012 at 7:43pm.
Roberto has 10 different colored sheets of paper and 3 different colored envelopes. How many different letters can he make consisting of one colored sheet of paper and one colored envelope??? Please explain!

Probability  Ms. Sue, Friday, May 11, 2012 at 8:32pm
10 * 3 = ?
If you don't understand draw a picture to represent this problem. 
Probability  emilse, Sunday, April 20, 2014 at 8:07pm
11. Roberto has 10 different colored sheets of paper and 3 different colored envelopes. How many different letters can he make consisting of one colored sheet of paper and one colored envelope?