To solve this worksheet, we need to convert standard numbers (Arabic numerals) into Roman numerals.
Key Roman Numeral Symbols:
*
I = 1
*
V = 5
*
X = 10
*
L = 50
*
C = 100
Rules to remember:
1.
Addition: If a smaller symbol is after a larger one, you add them (e.g., VI = 5 + 1 = 6).
2.
Subtraction: If a smaller symbol is before a larger one, you subtract it (e.g., IV = 5 - 1 = 4).
* I can be placed before V (5) and X (10).
* X can be placed before L (50) and C (100).
Let's solve each problem step-by-step:
1.
27: Break it down into 20 + 7.
* 20 is XX.
* 7 is VII (5 + 2).
* Result:
XXVII
2.
15: Break it down into 10 + 5.
* 10 is X.
* 5 is V.
* Result:
XV
3.
35: Break it down into 30 + 5.
* 30 is XXX.
* 5 is V.
* Result:
XXXV
4.
8: Break it down into 5 + 3.
* 5 is V.
* 3 is III.
* Result:
VIII
5.
42: Break it down into 40 + 2.
* 40 is XL (50 - 10).
* 2 is II.
* Result:
XLII
6.
24: Break it down into 20 + 4.
* 20 is XX.
* 4 is IV (5 - 1).
* Result:
XXIV
7.
3: Just three ones.
* Result:
III
8.
7: Break it down into 5 + 2.
* 5 is V.
* 2 is II.
* Result:
VII
9.
49: Break it down into 40 + 9.
* 40 is XL (50 - 10).
* 9 is IX (10 - 1).
* Result:
XLIX
10.
47: Break it down into 40 + 7.
* 40 is XL.
* 7 is VII.
* Result:
XLVII
11.
13: Break it down into 10 + 3.
* 10 is X.
* 3 is III.
* Result:
XIII
12.
48: Break it down into 40 + 8.
* 40 is XL.
* 8 is VIII.
* Result:
XLVIII
13.
50: This has its own symbol.
* Result:
L
14.
23: Break it down into 20 + 3.
* 20 is XX.
* 3 is III.
* Result:
XXIII
15.
44: Break it down into 40 + 4.
* 40 is XL.
* 4 is IV.
* Result:
XLIV
16.
5: This has its own symbol.
* Result:
V
17.
6: Break it down into 5 + 1.
* 5 is V.
* 1 is I.
* Result:
VI
18.
9: This uses subtraction (10 - 1).
* Result:
IX
Final Answer:
1. XXVII
2. XV
3. XXXV
4. VIII
5. XLII
6. XXIV
7. III
8. VII
9. XLIX
10. XLVII
11. XIII
12. XLVIII
13. L
14. XXIII
15. XLIV
16. V
17. VI
18. IX
Parent Tip: Review the logic above to help your child master the concept of roman numeral worksheet for grade 3.
