
Concept explainers
Triangle Puzzle To play the game, follow the steps listed below.
1.Start at any number on the bottom row of the triangle and move to any adjoining square, right, left, or up, and then add the two numbers.
2.Move to another adjoining square, adding the number in that square to your total.
3.Continue in the same manner, each time adding the number in the square you select to your total.
The goal is to reach the square at the top with the fewest number of squares selected while keeping the sum within the following guidelines.
At no time may the sum of the numbers be less than –5 or greater than or equal to 5.

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