| ROMAN NUMERAL | VALUE | EXPLANATION |
| I | 1 | I stands for 1. |
| II | 2 | II stands for 1 + 1 = 2. |
| III | 3 | III stands for 1 + 1 + 1 = 3. |
| IV | 4 | IV stands for 5 - 1 = 4. |
| V | 5 | V stands for 5. |
| VI | 6 | VI stands for 5 + 1 = 6. |
| VII | 7 | VII stands for 5 + 1 + 1 = 7. |
| VIII | 8 | VIII stands for 5 + 1 + 1 + 1 = 8. |
| IX | 9 | IX stands for 10 - 1 = 9. |
| X | 10 | X stands for 10. |
| XI | 11 | XI stands for 10 + 1 = 11. |
| XII | 12 | XII stands for 10 + 1 + 1 = 12. |
| XIII | 13 | XIII stands for 10 + 1 + 1 + 1 = 13. |
| XIV | 14 | XIV stands for 10 + (5 - 1) = 14. |
| XV | 15 | XV stands for 10 + 5 = 15. |
| XVI | 16 | XVI stands for 10 + 5 + 1 = 16. |
| XVII | 17 | XVII stands for 10 + 5 + 1 + 1 = 17. |
| XVIII | 18 | XVIII stands for 10 + 5 + 1 + 1 + 1 = 18. |
| XIX | 19 | XIX stands for 10 + (10 - 1) = 19. |
| XX | 20 | XX stands for 10 + 10 = 20. |
| XXI | 21 | XXI stands for 10 + 10 + 1 = 21. |
| XXII | 22 | XXII stands for 10 + 10 + 1 + 1 = 22. |
| XXIII | 23 | XXIII stands for 10 + 10 + 1 + 1 + 1 = 23. |
| XXIV | 24 | XXIV stands for 10 + 10 + (5 - 1) = 24. |
| XXV | 25 | XXV stands for 10 + 10 + 5 = 25. |
| XXVI | 26 | XXVI stands for 10 + 10 + 5 + 1 = 26. |
| XXVII | 27 | XXVII stands for 10 + 10 + 5 + 1 + 1 = 27. |
| XXVIII | 28 | XXVIII stands for 10 + 10 + 5 + 1 + 1 + 1 = 28. |
| XXIX | 29 | XXIX stands for 10 + 10 + (10 - 1) = 29. |
| XXX | 30 | XXX stands for 10 + 10 + 10 = 30. |
| XXXI | 31 | XXXI stands for 10 + 10 + 10 + 1 = 31. |
| XXXII | 32 | XXXII stands for 10 + 10 + 10 + 1 + 1 = 32. |
| XXXIII | 33 | XXXIII stands for 10 + 10 + 10 + 1 + 1 + 1 = 33. |
| XXXIV | 34 | XXXIV stands for 10 + 10 + 10 + (5 - 1) = 34. |
| XXXV | 35 | XXXV stands for 10 + 10 + 10 + 5 = 35. |
| XXXVI | 36 | XXXVI stands for 10 + 10 + 10 + 5 + 1 = 36. |
| XXXVII | 37 | XXXVII stands for 10 + 10 + 10 + 5 + 1 + 1 = 37. |
| XXXVIII | 38 | XXXVIII stands for 10 + 10 + 10 + 5 + 1 + 1 + 1 = 38. |