In the Addoku, as for Sudoku, every row, column and 3x3 block must contain the numerals 1-9. The difference is that you’re not given numbers to start you off. The numbers that occur in the squares linked by a shaded line add up to the total given in the top left-hand corner of each set. No number is repeated in any of these sets. Use these totals to find the right numbers to solve the puzzle.

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