#1
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.
| | 48 | 21 | | 23 | 140 |
| 40 | | 17 | | 3 | 122 |
| 46 | 38 | | | 45 | 181 |
| 34 | | | | 48 | 191 |
| 22 | 6 | 28 | 40 | 2 | 98 |
| 145 | 165 | 135 | 166 | 121 | 108 |