Journal of the Mathematics Council of the Alberta Teachers’ Association
Volume 31 Issue 2, April 1993
23
Addition and Subtraction Puzzle
K. Allen Neufeld
- On the grid below, 12 points are labeled with numbers. Join with a solid line pairs of points whose numbers are the first two members in each equation below. The first one has been done for you. The points labeled 38 and 8 have been joined with a solid line.
