Using a piece of scratch paper, cut eight rectangular cards that will fit in the boxes below. Write a 1 on the first card, a 2 on the second card, and so on, until you have the cards numbered from 1 to 8.
- Puzzle 1: Place the number cards in the rectangles above so that no numbers that are next to each other in counting order are neighbors in the same row. For instance, the number 4 can't be in a rectangle that is directly to the right or to the left of the square with the number 5.
- Puzzle 2: Place the number cards in the rectangles so that no numbers that are next to each other in counting order are neighbors in the same row or column. For instance, the number 4 can't be in a rectangle that shares a side with the square with the number 5.
- Puzzle 3: Place the number cards in the rectangles so that no numbers that are next to each other in counting order are neighbors horizontally (to the right or to the left), vertically (up or down), or diagonally (corner to corner). For instance, the number 4 can't be in a square that shares a side or a corner with the rectangle with the number 5.
Find more digit placing puzzles on www.galileo.org/math/puzzles/DigitPlacingPuzzle.html.
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