P – AS – RT5

Students kept track of the weather during the school year. At the end of the year, the students noticed that most of the days were sunny. The second most common weather was rain. There were only a few snow days. How many more days were sunny than...

P – AS – OE7

The difference between two 3-digit numbers is a 3-digit number. What could the three 3-digit numbers be?

P – AS – OE8

The difference between two 3-digit numbers is a 2-digit number. What could the two 3-digit numbers be?

Subscribe To Our Newsletter

Join our mailing list to receive the latest news and updates from Dr. David Costello.

You have successfully subscribed!