Open Middle®
Directions: Using the digits 1 through 9 at most one time each, place a digit in each box to create an equation such that the solution is the largest integer possible.
Hint
How might a backwards approach be able to support you? What is an integer?
Answer
There are many correct answers.
Potential Answer: (9/3)x+1=(4/2)x+8; x = 7
Potential Answer: (4/2)x+1=(9/3)x+8; x = -7
Potential Answer: (9/3)x+1=(4/2)x+8; x = 7
Potential Answer: (4/2)x+1=(9/3)x+8; x = -7
Source: Kristen Amaral
