Werner can make a square, where the sums of the numbers in all four rows and in all four columns are the same, from the three pieces shown and one further piece. Which of the following pieces is needed to complete his square?
Select one option, then click Submit.
1 1 3
2 1 0
1 2 1
2 2 2
2 2 3
Select an option, then submit.
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Grey Kangaroo (2024)
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