![Amazon.co.jp: Sudoku & Cross Sum: 100 Easy Sudoku and 100 Easy Cross Sum Puzzles & Solutions : Kness, Ron: Foreign Language Books Amazon.co.jp: Sudoku & Cross Sum: 100 Easy Sudoku and 100 Easy Cross Sum Puzzles & Solutions : Kness, Ron: Foreign Language Books](https://m.media-amazon.com/images/I/71M7K8gHvgS._AC_UF1000,1000_QL80_.jpg)
Amazon.co.jp: Sudoku & Cross Sum: 100 Easy Sudoku and 100 Easy Cross Sum Puzzles & Solutions : Kness, Ron: Foreign Language Books
Cross Math Puzzles - Enjoy your time with a "Cross Sums" puzzle all about addition. Directions are included. Enjoy the puzzle. | Facebook
![logical deduction - Strategies for creating a cross sums puzzle with a unique solution - Puzzling Stack Exchange logical deduction - Strategies for creating a cross sums puzzle with a unique solution - Puzzling Stack Exchange](https://i.stack.imgur.com/E2wPb.jpg)