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Calcudoku puzzles

My database includes 4597 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row and every column contains the digits 1 through 9. Each box must also be calculated according to number and operator. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

2264471 puzzles downloaded.

6+
9+
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24+
21+
7+
22+
12+
3
19+
33+
37+
18+
9+
9+
18+
5+
20+
16+
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7+
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Showing puzzle number: 654
Puzzletype: Plus
Startnumbers: 81
Difficulty: Impossible ()
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