Open Middle®
Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to generate equivalent numerical expressions:
Hint
What is the property of powers?
Answer
There are many possible solution combinations. The power pairs would be 1 & 8, 2 & 7, 9, 3 & 6, 4 & 5
Source: Bryan Anderson
Extension: What if you had to use the numbers 10 through 19? 15 through 24? Any ten consecutive numbers a through j?
You don’t need to use those numbers. It’s really easy to figure out.