A quiet numbers puzzle where every thick outline hides a small sum. Fill the grid so no number repeats in a row or a column, and every group comes to the number in its corner.
How to play
Write a number in every square so that each number appears once in every row and once in every column. The squares inside a thick outline make one group. The small number in its corner says what that group must come to, and the sign says how: + add, × multiply, - subtract, ÷ divide. A dotted line only divides squares that belong to the same group.
Copies
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Sheet code:
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Preview
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