| 1. | 3 + 9 = | 5 + 9 = | 7 + 4 = | 2 + 3 = | 3 + 5 = |
| 2. | 9 + 3 = | 2 + 2 = | 9 + 7 = | 5 + 8 = | 3 + 6 = |
| 3. | 5 + 2 = | 2 + 4 = | 6 + 2 = | 3 + 1 = | 6 + 1 = |
| 4. | 6 + 3 = | 1 + 1 = | 3 + 4 = | 2 + 8 = | 9 + 9 = |
| 5. | 4 + 6 = | 1 + 2 = | 8 + 4 = | 7 + 7 = | 9 + 6 = |
| 6. | 2 + 6 = | 4 + 4 = | 3 + 5 = | 8 + 8 = | 1 + 5 = |
| 7. | 2 + 2 = | 3 + 1 = | 1 + 3 = | 7 + 6 = | 9 + 1 = |
| 8. | 7 + 1 = | 3 + 7 = | 0 + 9 = | 8 + 8 = | 5 + 4 = |
| 9. | 9 + 4 = | 4 + 5 = | 2 + 7 = | 9 + 5 = | 4 + 5 = |
| 10. | 6 + 4 = | 5 + 4 = | 5 + 7 = | 1 + 9 = | 9 + 9 = |
| 11. | 4 + 3 = | 2 + 6 = | 6 + 5 = | 1 + 6 = | 6 + 3 = |
| 12. | 6 + 9 = | 8 + 2 = | 2 + 7 = | 7 + 1 = | 1 + 4 = |
| 13. | 8 + 5 = | 5 + 7 = | 8 + 1 = | 1 + 3 = | 0 + 6 = |
| 14. | 3 + 8 = | 6 + 7 = | 4 + 7 = | 1 + 4 = | 8 + 4 = |
| 15. | 7 + 8 = | 3 + 3 = | 3 + 4 = | 2 + 4 = | 5 + 1 = |
| 16. | 7 + 5 = | 7 + 3 = | 2 + 8 = | 1 + 7 = | 8 + 5 = |
| 17. | 9 + 8 = | 3 + 6 = | 6 + 1 = | 9 + 0 = | 9 + 7 = |
| 18. | 4 + 8 = | 6 + 7 = | 1 + 5 = | 6 + 6 = | 8 + 2 = |
| 19. | 4 + 6 = | 7 + 2 = | 4 + 1 = | 1 + 1 = | 5 + 6 = |
| 20. | 7 + 4 = | 7 + 9 = | 3 + 3 = | 7 + 3 = | 2 + 5 = |
answers to this test:
jakeholland.net/multest.php?vals=0-9&op=add&seed=1693618128&answer
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