Roman numeral conversion worksheet for practicing Arabic to Roman and Roman to Arabic number conversions.

Let’s go step by step to convert each number.

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Part 1: Arabic to Roman (0–100)

We need to remember the basic Roman numerals:
- I = 1
- V = 5
- X = 10
- L = 50
- C = 100

Rules:
- If a smaller numeral is before a bigger one, subtract it (like IV = 4).
- If it’s after, add it (like VI = 6).

Now let’s solve each:

1. 67 → 50 + 10 + 5 + 2 = L + X + V + II = LXVII
2. 36 → 10+10+10+5+1 = XXX + V + I = XXXVI
3. 46 → 40 + 6 = XL + VI = XLVI
4. 27 → 10+10+5+2 = XX + V + II = XXVII
5. 82 → 50+10+10+10+2 = L + XXX + II = LXXXII
6. 50 → just L
7. 8 → 5+3 = V + III = VIII
8. 45 → 40 + 5 = XL + V = XLV
9. 2 → II
10. 28 → 10+10+5+3 = XX + V + III = XXVIII
11. 9 → 10 - 1 = IX
12. 48 → 40 + 8 = XL + VIII = XLVIII
13. 83 → 50+10+10+10+3 = L + XXX + III = LXXXIII
14. 20 → 10+10 = XX
15. 98 → 90 + 8 = XC + VIII = XCVIII

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Part 2: Roman to Arabic (0–100)

Read left to right. Add unless a smaller numeral is before a bigger one — then subtract.

16. LXIX → L=50, X=10, IX=9 → 50+10+9 = 69
17. LXVI → L=50, X=10, V=5, I=1 → 50+10+5+1 = 66
18. XCVI → XC=90, V=5, I=1 → 90+5+1 = 96
19. XXVII → X=10, X=10, V=5, I=1, I=1 → 10+10+5+1+1 = 27
20. III → 1+1+1 = 3
21. LIX → L=50, IX=9 → 50+9 = 59
22. XLII → XL=40, I=1, I=1 → 40+1+1 = 42
23. VII → V=5, I=1, I=1 → 5+1+1 = 7
24. LIII → L=50, I=1, I=1, I=1 → 50+1+1+1 = 53
25. LXXXVIII → L=50, XXX=30, V=5, III=3 → 50+30+5+3 = 88
26. LXXI → L=50, XX=20, I=1 → 50+20+1 = 71
27. XXXIX → XXX=30, IX=9 → 30+9 = 39
28. XXV → X=10, X=10, V=5 → 10+10+5 = 25
29. XLVI → XL=40, V=5, I=1 → 40+5+1 = 46
30. XC → 100 - 10 = 90

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Final Answer:

1. LXVII
2. XXXVI
3. XLVI
4. XXVII
5. LXXXII
6. L
7. VIII
8. XLV
9. II
10. XXVIII
11. IX
12. XLVIII
13. LXXXIII
14. XX
15. XCVIII
16. 69
17. 66
18. 96
19. 27
20. 3
21. 59
22. 42
23. 7
24. 53
25. 88
26. 71
27. 39
28. 25
29. 46
30. 90