Open Middle®
Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make a true statement.
Hint
What multiplication has to happen to be left with a single digit in the result?
What will happen to the power of 10 in the result?
What will happen to the power of 10 in the result?
Answer
There are multiple solutions. Possible answers are:
5 x 10^4 x 2 x 10^3 = 1 x 10^8
5 x 10^1 x 6 x 10^7 = 3 x 10^9
5 x 10^2 x 8 x 10^3 = 4 x 10^6
Source: Luke Cole
