Open Middle®
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to create a quadratic in factored form with the lowest minimum. Source: Ryan Kimes
Read More »Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to create a quadratic in factored form with the lowest minimum. Source: Ryan Kimes
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