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.
Hint
What has to be true about the pairs of numbers inside the parenthesis?
Answer
There are many answers including:
8 = (6+2) = (7+1) = (5+3)
9 = (8+1) = (7+2) = (6+3)
7 = (6+1) = (3+4) = (5+2)
8 = (6+2) = (7+1) = (5+3)
9 = (8+1) = (7+2) = (6+3)
7 = (6+1) = (3+4) = (5+2)
Source: Owen Kaplinsky
Can’t wait to have my students work on this!!!
9= (8+1) =(5+4) =(7+2)=(6+3)
9=(3+6)=(5+4)=(7+2)
9=(7+2)=(4+5)=(8+1)