Open Middle®
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to create an equation using addition and subtraction that equals 4. Source: Erik Almer
Read More »Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to create an equation using addition and subtraction that equals 4. Source: Erik Almer
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