I assure you, this, too is solvable!
APRIL + FIRST = PRANK
Solutions are below the image
SPOILER SOLUTIONS
| APRIL_first | FIRST_second | PRANK_third |
|---|---|---|
| 25604 | 30687 | 56291 |
| 25607 | 30684 | 56291 |
| 36158 | 25149 | 61307 |
| 36159 | 25148 | 61307 |
| 67805 | 10829 | 78634 |
| 67809 | 10825 | 78634 |
| 67803 | 10849 | 78652 |
| 67809 | 10843 | 78652 |
| 28137 | 53109 | 81246 |
| 28139 | 53107 | 81246 |
| 39126 | 52178 | 91304 |
| 39128 | 52176 | 91304 |