84 in Roman Numerals

84 in Roman numerals is written as LXXXIV. Roman numerals follow clear rules where some numbers are formed by addition and others by subtraction. To understand 84 in Roman numerals, we divide the number into place values: 84 = 80 + 4. The number 80 is written as LXXX (50 + 10 + 10 + 10), and 4 is written as IV, which follows the subtraction rule (5 − 1). When these parts are combined, we get LXXXIV. Learning how to convert 84 into Roman numerals helps students understand number patterns and the structure of the Roman number system. It also improves problem-solving skills by showing how different symbols work together to form a complete number. Roman numerals may be ancient, but they are still used today in clocks, outlines, and special events.

Table of Contents

How to Write 84 in Roman Numerals?

To write 84 in Roman numerals, we first separate the number into smaller values that match Roman symbols.

84 in Roman Numerals

Step 1: Break 84 into parts

  • 84 = 50 + 10 + 10 + 10 + (5 – 1)

  • Now express 80 and 4 using Roman numerals.

Step 2: Convert each part

  • 80 = 50 + 10 + 10 + 10 = L + X + X + X = LXXX

  • 4 = 5 − 1 = IV

Step 3: Combine the symbols

  • 84 = LXXX + IV

  • 84 = LXXXIV

Number

Roman Numeral

80

LXXX

81

LXXXI

82

LXXXII

83

LXXXIII

84

LXXXIV

85

LXXXV

86

LXXXVI

87

LXXXVII

88

LXXXVIII

89

LXXXIX

90

XC

 

Solved Examples on 84 in Roman Numerals

Example 1: Find the value of (95 − 84) in Roman numerals.

Solution:

First, solve the subtraction:

  • 95 − 84 = 11

Now convert 11 into Roman numerals.

  • 11 = 10 + 1

  • = X + I

  • = XI

Therefore, the value of (95 − 84) in Roman numerals is XI.

Example 2: What is the remainder? When LXXXIV is divided by VII?

Solution:

  • LXXXIV = 84

  • VII = 7

Now divide 84 by 7.

  • 84 ÷ 7 = 12

  • Remainder = 0

Since the remainder is 0, there is no Roman numeral for zero. Therefore, when LXXXIV is divided by VII, the remainder is 0.

Example 3: Find the sum of 84 and 29 in Roman numerals.

Solution:

First, add the numbers:

  • 84 + 29 = 113

Now convert 113 into Roman numerals.

113 = 100 + 10 + 3

= C + X + III

= CXIII

So, the sum of 84 and 29 in Roman numerals is CXIII.

Example 4: Find the Difference Between 200 and 84 in Roman Numerals.

Solution:

Subtract the numbers:

  • 200 − 84 = 116

Now write 116 in expanded form:

  • 116 = 100 + 10 + 6

  • = C + X + VI

  • = CXVI

Therefore, the difference between 200 and 84 in Roman numerals is CXVI.

Example 5: Multiply 84 by 2 and write the answer in Roman numerals.

Solution:

  • 84 × 2 = 168

Now convert 168 into Roman numerals.

  • 168 = 100 + 50 + 10 + 8

  • = C + L + X + VIII

  • = CLXVIII

Thus, 84 multiplied by 2 in Roman numerals is CLXVIII.

Fun Facts on 84 in Roman Numerals

  • 84 in Roman numerals is LXXXIV, formed using addition (LXXX = 80) and subtraction (IV = 4).

  • LXXXIV has five letters, so Roman numerals can look longer than regular numbers.

  • The symbol X is repeated three times, following Roman numeral rules.

  • IV shows the subtraction rule (5 − 1 = 4).

  • Roman numerals like LXXXIV are still used in clocks, books, and movie titles.

Practice Questions on 84 in Roman Numerals

1. Write 84 in Roman numerals using the correct symbols.

2. Convert LXXXIV into Hindu-Arabic numbers.

3. Add 84 and 26, then express the answer in Roman numerals.

4. Subtract 39 from 84 and write the result in Roman numerals.

5. Identify the Roman symbols used in LXXXIV and mention their individual values.

Conclusion

84 in Roman numerals is written as LXXXIV. It is formed by combining 50 (L), 30 (XXX), and 4 (IV). Here, IV follows the subtraction rule, where 1 (I) is placed before 5 (V) to show 5 − 1 = 4. The rest of the number uses the addition rule. Understanding how to write 84 in Roman numerals helps students see how both addition and subtraction work together in the Roman number system. By practicing nearby numbers like 83 (LXXXIII), 85 (LXXXV), 88 (LXXXVIII), and 89 (LXXXIX), learners can easily identify patterns and improve their Roman numeral skills. Learning 84 in Roman numerals also builds strong number sense and helps students read Roman numerals used in clocks, chapters, and important dates.

Understand 84 in Roman numerals in a simple and structured way with step-by-step guidance at Orchids International School.

Frequently Asked Questions on 84 in Roman Numerals

1. What does 84 look like in Roman numerals?

The number 84 is written as LXXXIV in Roman numerals. It is formed by combining the symbols for 80 (LXXX) and 4 (IV).

2. How is 84 broken down to write it in Roman numerals?

To express 84 in Roman numerals, divide it into tens and ones:

  • 80 = LXXX

  • 4 = IV

Adding these together gives LXXXIV. This method makes Roman numeral conversion simple and clear.

3. Why is 84 written as LXXXIV and not LXXXIIII?

  • In Roman numerals, the number 4 is written as IV, not IIII.

  • This follows the subtraction rule where I (1) is placed before V (5) to show 5 − 1 = 4.

  • Since 84 = 80 + 4, it becomes LXXX + IV = LXXXIV.

4. What are the Roman numerals just before and after 84?

  • The number before 84 is 83, written as LXXXIII.

  • The number after 84 is 85, written as LXXXV.

5. Does 84 use the addition or subtraction rule in Roman numerals?

The number 84 uses both rules:

  • LXXX (80) follows the addition rule.

  • IV (4) follows the subtraction rule because I comes before V to show 5 − 1.

  • Together, they form LXXXIV.

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