Open Middle®
Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) product. Source: Robert Kaplinsky
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Multiplying a Two-Digit Number by a Single-Digit Number
Directions: Using the digits 1 to 4 at most one time each, fill in the boxes to make the largest possible product. Source: Robert Kaplinsky
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