Activity

University of Cambridge: Nrich: Three by Three

Curated by ACT

Push your problem-solving skills to the limit. Arrange 3 red, 3 blue and 3 yellow counters into a three-by-three square grid, so that there is only one of each color in every row and every column.

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Classroom Considerations
  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)