Open Middle®
Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to make a true statement.
Hint
How might doubling and halving help you?
Answer
Examples 46 x 30 = 15 x 92, 27 x 38 = 54 x 19, 82 x 35 = 41 x 70
Source: Travis Drake
