Open Middle®
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the greatest (or least) product.
Hint
Where is the best place to put the biggest numbers?
Why should they go there?
Answer
7*10^9 * 6*10^8
Source: Bryan Meyer
Smallest value?
(4*10^1)*(3*10^2)
how do I get this to equal 800,000,000
2 x 10^1 x 3 x 10^0
digits 1-9 a 0 would not be allowed
Answer is: 4 times 10^1 times 3 times 10^2