Sum Box Sudoku

  • strict warning: Only variables should be assigned by reference in /mnt/web118/d3/21/540721/htdocs/sachsentext/sites/all/modules/links/links_related.module on line 197.
  • strict warning: Only variables should be assigned by reference in /mnt/web118/d3/21/540721/htdocs/sachsentext/sites/all/modules/links/links_related.module on line 433.
  • strict warning: Only variables should be assigned by reference in /mnt/web118/d3/21/540721/htdocs/sachsentext/sites/all/modules/links/links.inc on line 1450.
  • strict warning: Only variables should be assigned by reference in /mnt/web118/d3/21/540721/htdocs/sachsentext/sites/all/modules/links/links.inc on line 1450.

Fill in the grid so that every row, every column, and every 3 x 3 box contains the digits 1 through 9. There are 6 boxes with a plus or minus sign where the sum or difference of the number formed by the first two rows is equal to the number formed in the third row of the same box.

Sum Box Sudoku