Open Middle®
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make a true statement.
Hint
What is the biggest the first number could be and still be less than 10?
What can we do to avoid having a product with non-zero digits in the hundredths place?
What can we do to avoid having a product with non-zero digits in the hundredths place?
Answer
The only answer is 1.5 x 3.2 = 4.8
Source: Robert Kaplinsky with help verifying the answer from Marcia and Rick Casterline
I only found two possible answers: 1.5 and 2.5. Assumed zero was unavailable and found that placing any other digit in the tenths place created two digits to the right of the decimal point.
2.5 * 3.2 = 8.0, so if “0” is not an option, 1.5 * 3.2 = 4.8 is the ONLY answer
Neat! Thank you Marcia and Rick for figuring that out.
The answer is 1.5 x 3.2=4.8