Number Puzzle
Students: Print this page - then write your name at the top. The numbers in the bottom row and in the right most column are the totals for the columns, rows and the left-to-right, top-to-bottom diagonal - they are shown in bold type. The block of numbers has some numbers missing - see the empty boxes. Fill in those numbers so that the totals for all rows, columns and the left-to-right, top-to-bottom diagonal match the totals shown.
| 16 | 17 | 6 | 8 | 12 | 0 | 16 | 11 | 1 | 1 | 88 |
| 19 | 11 | 0 | | 8 | | | 6 | 10 | 1 | 75 |
| 18 | 13 | 6 | 17 | 12 | 3 | 5 | | | 4 | 91 |
| 14 | 16 | 9 | 2 | 5 | 4 | 16 | 14 | 17 | 2 | 99 |
| 14 | 13 | 16 | 7 | 3 | 1 | 9 | 11 | | 8 | 98 |
| 1 | 0 | | 13 | 7 | 2 | | 9 | 16 | 8 | 76 |
| 15 | 8 | 4 | 17 | 7 | 3 | | 18 | 16 | 4 | 94 |
| 12 | 15 | 9 | 7 | 6 | 4 | 16 | 19 | 13 | 11 | 112 |
| 14 | 13 | 10 | 18 | 3 | 13 | 6 | 15 | 14 | 2 | 108 |
| 13 | 7 | 18 | 8 | 6 | 6 | 8 | 19 | 0 | 0 | 85 |
| 136 | 113 | 88 | 99 | 69 | 44 | 98 | 129 | 109 | 41 | 75 |