Open Middle®
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the equation true. Source: Ryun Deckert and Brock Montgomery
Read More »Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the equation true. Source: Ryun Deckert and Brock Montgomery
Read More »