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The problem asks to convert decimal numbers to Roman numerals. Let’s convert the given numbers one by one:

a) **449**  
- 400 = CD  
- 40 = XL  
- 9 = IX  
So, 449 in Roman numerals is **CDXLIX**.

b) **1,447**  
- 1,000 = M  
- 400 = CD  
- 40 = XL  
- 7 = VII  
So, 1,447 in Roman numerals is **MCDXLVII**.

c) **2,286**  
- 2,000 = MM  
- 200 = CC  
- 80 = LXXX  
- 6 = VI  
So, 2,286 in Roman numerals is **MMCCLXXXVI**.

Let me know if you would like more details or further clarifications!

Here are five related questions to expand on the topic:
1. How would you convert the number 567 to Roman numerals?
2. What is the largest number that can be represented in Roman numerals?
3. How are Roman numerals used in modern applications?
4. Can you explain why the subtractive notation (like IV for 4) is used in Roman numerals?
5. How would you write the number 1999 in Roman numerals?

**Tip**: When writing Roman numerals, always subtract smaller values from larger ones (like IV for 4) and add when smaller values come after larger ones (like VI for 6).

Write the following decimal numbers with Roman Numerals:

a) 449 = 
b) 1 447 = 
c) 2 286 =

Learn how to convert the decimal numbers 449, 1447, and 2286 into Roman numerals. This exercise covers the key concepts of the Roman numeral system, including conversion rules and subtractive combinations. Suitable for students in Grades 4-6.

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