Roman numerals worksheets 3rd grade - Free Printable

Let’s go step by step to convert each Roman numeral into a regular number (Arabic numeral).

Roman numerals use letters to represent numbers:
- I = 1
- V = 5
- X = 10
- L = 50
- C = 100
- D = 500
- M = 1000

Rules:
- If a smaller number comes BEFORE a bigger one, you subtract it. Example: IV = 4 (5 - 1)
- If a smaller number comes AFTER a bigger one, you add it. Example: VI = 6 (5 + 1)
- You can repeat I, X, C, M up to 3 times in a row. V, L, D are never repeated.

Now let’s solve each problem carefully:

1. XXVIII → X=10, X=10, V=5, I=1, I=1, I=1 → 10+10+5+1+1+1 = 28
2. LXVII → L=50, X=10, V=5, I=1, I=1 → 50+10+5+1+1 = 67
3. LVII → L=50, V=5, I=1, I=1 → 50+5+1+1 = 57
4. XLI → XL = 40 (50-10), I=1 → 40+1 = 41
5. XVII → X=10, V=5, I=1, I=1 → 10+5+1+1 = 17
6. XXXIX → XXX=30, IX=9 (10-1) → 30+9 = 39
7. XXIII → X=10, X=10, I=1, I=1, I=1 → 10+10+1+1+1 = 23
8. XLVIII → XL=40, V=5, I=1, I=1, I=1 → 40+5+1+1+1 = 48
9. LXXXIV → L=50, XXX=30, IV=4 → 50+30+4 = 84
10. XXXVI → XXX=30, V=5, I=1 → 30+5+1 = 36
11. LXXX → L=50, XXX=30 → 50+30 = 80
12. LX → L=50, X=10 → 50+10 = 60
13. XXXV → XXX=30, V=5 → 30+5 = 35
14. LXXV → L=50, XX=20, V=5 → 50+20+5 = 75
15. VI → V=5, I=1 → 5+1 = 6
16. XXX → 10+10+10 = 30
17. XCIV → XC=90 (100-10), IV=4 → 90+4 = 94
18. LI → L=50, I=1 → 50+1 = 51
19. XXXII → XXX=30, II=2 → 30+2 = 32
20. LVIII → L=50, V=5, III=3 → 50+5+3 = 58
21. VII → V=5, II=2 → 5+2 = 7
22. XIX → X=10, IX=9 → 10+9 = 19
23. XLV → XL=40, V=5 → 40+5 = 45
24. XII → X=10, II=2 → 10+2 = 12
25. X → 10
26. XI → X=10, I=1 → 10+1 = 11
27. LXXVI → L=50, XX=20, V=5, I=1 → 50+20+5+1 = 76
28. V → 5
29. LXXXV → L=50, XXX=30, V=5 → 50+30+5 = 85
30. XXVII → XX=20, V=5, II=2 → 20+5+2 = 27
31. XXXVII → XXX=30, V=5, II=2 → 30+5+2 = 37
32. XLVI → XL=40, V=5, I=1 → 40+5+1 = 46
33. LXXIV → L=50, XX=20, IV=4 → 50+20+4 = 74
34. III → 1+1+1 = 3
35. LXXXIII → L=50, XXX=30, III=3 → 50+30+3 = 83
36. XXI → X=10, X=10, I=1 → 10+10+1 = 21
37. LXXVII → L=50, XX=20, V=5, II=2 → 50+20+5+2 = 77
38. XLV → XL=40, V=5 → 40+5 = 45
39. XLVII → XL=40, V=5, II=2 → 40+5+2 = 47
40. LII → L=50, II=2 → 50+2 = 52
41. LXXI → L=50, XX=20, I=1 → 50+20+1 = 71
42. LXVIII → L=50, X=10, V=5, III=3 → 50+10+5+3 = 68
43. LXX → L=50, XX=20 → 50+20 = 70
44. LV → L=50, V=5 → 50+5 = 55
45. XXXIII → XXX=30, III=3 → 30+3 = 33
46. LVIII → L=50, V=5, III=3 → 50+5+3 = 58
47. LXI → L=50, X=10, I=1 → 50+10+1 = 61
48. XXII → XX=20, II=2 → 20+2 = 22
49. XIII → X=10, III=3 → 10+3 = 13
50. VIII → V=5, III=3 → 5+3 = 8
51. XXIV → XX=20, IV=4 → 20+4 = 24
52. LXXXIX → L=50, XXX=30, IX=9 → 50+30+9 = 89
53. XXXXI → Wait — this is not standard! Normally we write 41 as XLI. But if forced: XXXX=40, I=1 → 40+1 = 41 (though technically incorrect notation)
→ Actually, looking again — maybe typo? Should be XLI? But since written as XXXXI, we’ll take it as 40+1=41.
However, in proper Roman numerals, 41 is XLI. Let’s assume it’s meant to be XLI → 41
BUT — the worksheet says “XXXXI” — so perhaps they’re allowing non-standard form? We’ll go with 41.
Correction: In some old or informal uses, XXXXI was used for 41, though not correct today. For school purposes, we'll say 41.
54. XCVII → XC=90, VII=7 → 90+7 = 97
55. LXXXVII → L=50, XXX=30, V=5, II=2 → 50+30+5+2 = 87
56. XCII → XC=90, II=2 → 90+2 = 92
57. XV → X=10, V=5 → 10+5 = 15
58. LXVI → L=50, X=10, V=5, I=1 → 50+10+5+1 = 66
59. LXXIII → L=50, XX=20, III=3 → 50+20+3 = 73
60. LXII → L=50, X=10, II=2 → 50+10+2 = 62
61. LIX → L=50, IX=9 → 50+9 = 59
62. LXXII → L=50, XX=20, II=2 → 50+20+2 = 72
63. XXV → XX=20, V=5 → 20+5 = 25
64. LXXV → L=50, XX=20, V=5 → 50+20+5 = 75
65. L → 50
66. XLIX → XL=40, IX=9 → 40+9 = 49
67. LXXXIII → L=50, XXX=30, III=3 → 50+30+3 = 83
68. XCIX → XC=90, IX=9 → 90+9 = 99
69. XLIII → XL=40, III=3 → 40+3 = 43
70. LXV → L=50, X=10, V=5 → 50+10+5 = 65
71. XCI → XC=90, I=1 → 90+1 = 91
72. LXXXI → L=50, XXX=30, I=1 → 50+30+1 = 81

Wait — let me double-check #53: "XXXXI" — while not standard, if the worksheet wrote it that way, we should interpret it as 40 + 1 = 41. So we’ll keep it as 41.

Also, #53 might be a trick — but since it's listed, we answer based on what’s given.

Final check of all answers — looks consistent.

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Final Answer:
1. 28
2. 67
3. 57
4. 41
5. 17
6. 39
7. 23
8. 48
9. 84
10. 36
11. 80
12. 60
13. 35
14. 75
15. 6
16. 30
17. 94
18. 51
19. 32
20. 58
21. 7
22. 19
23. 45
24. 12
25. 10
26. 11
27. 76
28. 5
29. 85
30. 27
31. 37
32. 46
33. 74
34. 3
35. 83
36. 21
37. 77
38. 45
39. 47
40. 52
41. 71
42. 68
43. 70
44. 55
45. 33
46. 58
47. 61
48. 22
49. 13
50. 8
51. 24
52. 89
53. 41
54. 97
55. 87
56. 92
57. 15
58. 66
59. 73
60. 62
61. 59
62. 72
63. 25
64. 75
65. 50
66. 49
67. 83
68. 99
69. 43
70. 65
71. 91
72. 81