Number Sum
The following grid of size 5x5 is partially complete with whole numbers from 1 to 7.
The sum of each row and column is shown on the edges of the grid.
Fill in the missing numbers to complete the grid.
| 18 | 19 | 20 | 19 | 16 | |
| 25 | 6 | 5 | 4 | ||
| 14 | 2 | 4 | 4 | 3 | |
| 24 | 7 | 5 | |||
| 8 | 1 | 2 | 1 | ||
| 21 | 5 |