P – AS – OE15

Four different digits are used to make two 2-digit numbers. What is the difference between these two numbers?

P – AS – WP14

Of the 85 golfers signed up for the tournament, 27 were juniors while the remaining were seniors. How many seniors were signed up for the tournament?

P – AS – OE16

How does knowing what 9 + 4 equals help with solving 13 – 5?

Subscribe To Our Newsletter

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

You have successfully subscribed!