Open Middle®
Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to create two unit rates. You may reuse all the digits each equation.
Hint
How will the digits you choose affect whether you can have a single digit numerator in the unit rate?
Answer
There are many possible answers including 2/4 / 3/6 = 1/1 and 8/1 / 6/3 = 4/1
Source: Robert Kaplinsky
