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<p>Last updated on<strong>August 5, 2025</strong></p>
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<p>Last updated on<strong>August 5, 2025</strong></p>
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<p>Roman numerals are the way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols we use. Roman Numerals are used in royal titles, book names, sequences, and so on. Here we will be discussing Roman Numerals, rules, and examples.</p>
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<p>Roman numerals are the way of expressing numbers using symbols. I, V, X, L, C, D, and M are the symbols we use. Roman Numerals are used in royal titles, book names, sequences, and so on. Here we will be discussing Roman Numerals, rules, and examples.</p>
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<h2>What is 79 in Roman Numerals?</h2>
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<h2>What is 79 in Roman Numerals?</h2>
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<p>The royal titles, such as Henry I, Henry II, and so on. Have you noticed the names and wondered what these<a>symbols</a>(I and II) represented? Those are the Roman Numerals.</p>
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<p>The royal titles, such as Henry I, Henry II, and so on. Have you noticed the names and wondered what these<a>symbols</a>(I and II) represented? Those are the Roman Numerals.</p>
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<p>Earlier people used to count using fingers, sticks, bones, etc. When life became complex, a<a>standard form</a>was required to count. Ancient Romans used the Roman Numeral system to count. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols we use to count.</p>
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<p>Earlier people used to count using fingers, sticks, bones, etc. When life became complex, a<a>standard form</a>was required to count. Ancient Romans used the Roman Numeral system to count. I (1), V (5), X (10), L (50), C (100), D (500), and M (1000) are the symbols we use to count.</p>
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<p>In Roman Numerals, we use LXXIX to represent 79, here L is 50, XX is 20, and IX is 9. Let’s learn more about Roman numerals and how we write them.</p>
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<p>In Roman Numerals, we use LXXIX to represent 79, here L is 50, XX is 20, and IX is 9. Let’s learn more about Roman numerals and how we write them.</p>
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<h2>Basic Rules for 79 in Roman Numerals</h2>
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<h2>Basic Rules for 79 in Roman Numerals</h2>
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<p>There are certain basic rules to write a<a>number</a>in Roman Numerals. In this section, let’s discuss some basic rules that need to be remembered when writing a number in Roman numerals.</p>
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<p>There are certain basic rules to write a<a>number</a>in Roman Numerals. In this section, let’s discuss some basic rules that need to be remembered when writing a number in Roman numerals.</p>
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<h3><strong>Rule 1: Addition Method</strong></h3>
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<h3><strong>Rule 1: Addition Method</strong></h3>
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<p>The<a>addition</a>method is used when a smaller number is placed after a larger number, then it is the addition method. For example, LXX → L + X + X → 50 + 10 + 10 = 70</p>
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<p>The<a>addition</a>method is used when a smaller number is placed after a larger number, then it is the addition method. For example, LXX → L + X + X → 50 + 10 + 10 = 70</p>
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<h3><strong>Rule 2: Repetition Method</strong></h3>
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<h3><strong>Rule 2: Repetition Method</strong></h3>
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<p>To write certain numbers, some Roman Numerals can be repeated up to three times. For example, XXX → 30.</p>
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<p>To write certain numbers, some Roman Numerals can be repeated up to three times. For example, XXX → 30.</p>
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<h3><strong>Rule 3: Subtraction Method</strong></h3>
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<h3><strong>Rule 3: Subtraction Method</strong></h3>
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<p>If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the larger number. This is called the<a>subtraction</a>method. For example, IX → X - I → 10 - 1 = 9</p>
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<p>If a small number is followed by a large number in Roman Numerals, we subtract the smaller number from the larger number. This is called the<a>subtraction</a>method. For example, IX → X - I → 10 - 1 = 9</p>
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<h3><strong>Rule 4: Limitation Rule</strong></h3>
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<h3><strong>Rule 4: Limitation Rule</strong></h3>
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<p>The symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For example, we won't write LL for 100; instead, we use C, and 8 is written as VIII, not IIIIIIII.</p>
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<p>The symbols cannot be repeated more than three times, and some symbols like V, L, and D cannot be repeated. For example, we won't write LL for 100; instead, we use C, and 8 is written as VIII, not IIIIIIII.</p>
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<h2>How to Write 79 in Roman Numerals</h2>
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<h2>How to Write 79 in Roman Numerals</h2>
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<p>Let’s now learn how to write 79 in Roman Numerals. Follow these methods to write the number in Roman Numerals.</p>
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<p>Let’s now learn how to write 79 in Roman Numerals. Follow these methods to write the number in Roman Numerals.</p>
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<ul><li><strong>By Expansion Method</strong></li>
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<ul><li><strong>By Expansion Method</strong></li>
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<li><strong>By Grouping Method</strong></li>
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<li><strong>By Grouping Method</strong></li>
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<h3>79 in Roman Numeral by Expansion Method</h3>
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<h3>79 in Roman Numeral by Expansion Method</h3>
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<p>In the expansion method, based on the<a>place value</a>, the number is broken down. In this section, we will learn how to write 79 in Roman numerals using the expansion method.</p>
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<p>In the expansion method, based on the<a>place value</a>, the number is broken down. In this section, we will learn how to write 79 in Roman numerals using the expansion method.</p>
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<p>To write 79 in Roman Numerals, follow these steps:</p>
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<p>To write 79 in Roman Numerals, follow these steps:</p>
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<p><strong>Step 1:</strong>The number is broken down based on the place value. Place values include ones, tens, hundreds, etc.</p>
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<p><strong>Step 1:</strong>The number is broken down based on the place value. Place values include ones, tens, hundreds, etc.</p>
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<p>For 79, we write it as 50 + 20 + 9.</p>
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<p>For 79, we write it as 50 + 20 + 9.</p>
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<p><strong>Step 2:</strong>Converting the number into Roman Numerals</p>
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<p><strong>Step 2:</strong>Converting the number into Roman Numerals</p>
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<p>50 in Roman Numerals - L 20 in Roman Numerals - XX 9 in Roman Numerals - IX</p>
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<p>50 in Roman Numerals - L 20 in Roman Numerals - XX 9 in Roman Numerals - IX</p>
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<p><strong>Step 3:</strong>Combine them into Roman Numerals. </p>
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<p><strong>Step 3:</strong>Combine them into Roman Numerals. </p>
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<p>Therefore, 79 in Roman Numerals is L (50) + XX (20) + IX (9) = LXXIX</p>
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<p>Therefore, 79 in Roman Numerals is L (50) + XX (20) + IX (9) = LXXIX</p>
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<h2>79 in Roman Numeral by Grouping Method</h2>
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<h2>79 in Roman Numeral by Grouping Method</h2>
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<p>When writing a number into Roman Numerals, we group the number. </p>
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<p>When writing a number into Roman Numerals, we group the number. </p>
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<p>To write 79 in Roman Numeral, we group 79 as 50 + 20 + 9.</p>
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<p>To write 79 in Roman Numeral, we group 79 as 50 + 20 + 9.</p>
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<p>50 in Roman Numerals - L 20 in Roman Numerals - XX 9 in Roman Numerals - IX</p>
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<p>50 in Roman Numerals - L 20 in Roman Numerals - XX 9 in Roman Numerals - IX</p>
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<p>So, 79 is written as LXXIX in Roman Numerals.</p>
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<p>So, 79 is written as LXXIX in Roman Numerals.</p>
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<h2>Common Mistakes and How to Avoid Them in 79 Roman Numerals</h2>
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<h2>Common Mistakes and How to Avoid Them in 79 Roman Numerals</h2>
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<p>Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and ways to avoid them.</p>
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<p>Students make mistakes when writing a number in Roman Numerals. To master Roman Numerals, we can learn a few common mistakes and ways to avoid them.</p>
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<h3>Problem 1</h3>
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<h3>Problem 1</h3>
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<p>A historian is transcribing ancient texts and finds that a king ruled for LXXIX years. If the king began his reign in the year MXC, in what year did his reign end?</p>
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<p>A historian is transcribing ancient texts and finds that a king ruled for LXXIX years. If the king began his reign in the year MXC, in what year did his reign end?</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>The reign ended in the year MDCLXIX.</p>
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<p>The reign ended in the year MDCLXIX.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>To find the end year of the king's reign, add the duration of the reign to the start year:</p>
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<p>To find the end year of the king's reign, add the duration of the reign to the start year:</p>
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<p>Start year: MXC = 1090</p>
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<p>Start year: MXC = 1090</p>
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<p>Reign duration: LXXIX = 79</p>
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<p>Reign duration: LXXIX = 79</p>
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<p>End year: 1090 + 79 = 1169</p>
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<p>End year: 1090 + 79 = 1169</p>
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<p>1169 in Roman Numerals is MDCLXIX.</p>
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<p>1169 in Roman Numerals is MDCLXIX.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 2</h3>
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<h3>Problem 2</h3>
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<p>A treasure chest contains CLVIII gold coins, which are to be equally distributed among II groups of explorers. How many coins does each group receive?</p>
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<p>A treasure chest contains CLVIII gold coins, which are to be equally distributed among II groups of explorers. How many coins does each group receive?</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>Each group receives LXXIX coins.</p>
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<p>Each group receives LXXIX coins.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>To find out how many coins each group receives, divide the total number of coins by the number of groups:</p>
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<p>To find out how many coins each group receives, divide the total number of coins by the number of groups:</p>
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<p>Total coins: CLVIII = 158</p>
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<p>Total coins: CLVIII = 158</p>
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<p>Number of groups: II = 2</p>
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<p>Number of groups: II = 2</p>
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<p>Coins per group: 158 / 2 = 79</p>
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<p>Coins per group: 158 / 2 = 79</p>
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<p>79 in Roman Numerals is LXXIX.</p>
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<p>79 in Roman Numerals is LXXIX.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 3</h3>
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<h3>Problem 3</h3>
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<p>Calculate the sum of XL and LXXXIX using Roman numerals.</p>
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<p>Calculate the sum of XL and LXXXIX using Roman numerals.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>The sum of XL and LXXXIX is CXXIX.</p>
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<p>The sum of XL and LXXXIX is CXXIX.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>To find the sum, first convert the Roman numerals to numbers and then add them:</p>
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<p>To find the sum, first convert the Roman numerals to numbers and then add them:</p>
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<p>XL = 40</p>
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<p>XL = 40</p>
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<p>LXXXIX = 89</p>
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<p>LXXXIX = 89</p>
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<p>40 + 89 = 129</p>
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<p>40 + 89 = 129</p>
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<p>129 in Roman Numerals is CXXIX</p>
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<p>129 in Roman Numerals is CXXIX</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 4</h3>
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<h3>Problem 4</h3>
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<p>Two ancient scrolls were discovered, one marked LV and the other marked with a numeral indicating the difference between the two scrolls as XXIV. What numeral is marked on the second scroll?</p>
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<p>Two ancient scrolls were discovered, one marked LV and the other marked with a numeral indicating the difference between the two scrolls as XXIV. What numeral is marked on the second scroll?</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>The numeral marked on the second scroll is LXXIX.</p>
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<p>The numeral marked on the second scroll is LXXIX.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>The difference is given as XXIV:</p>
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<p>The difference is given as XXIV:</p>
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<p>First scroll: LV = 55</p>
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<p>First scroll: LV = 55</p>
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<p>Difference: XXIV = 24</p>
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<p>Difference: XXIV = 24</p>
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<p>Second scroll: 55 + 24 = 79</p>
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<p>Second scroll: 55 + 24 = 79</p>
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<p>79 in Roman Numerals is LXXIX.</p>
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<p>79 in Roman Numerals is LXXIX.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 5</h3>
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<h3>Problem 5</h3>
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<p>Write the Roman Numeral for the total number of pages, LXXIX, and XXXII, using the expansion method.</p>
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<p>Write the Roman Numeral for the total number of pages, LXXIX, and XXXII, using the expansion method.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>The Roman numeral for the total pages is CXI.</p>
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<p>The Roman numeral for the total pages is CXI.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>First convert the numbers to Roman numerals:</p>
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<p>First convert the numbers to Roman numerals:</p>
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<p> LXXIX = 79</p>
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<p> LXXIX = 79</p>
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<p> XXXII = 32</p>
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<p> XXXII = 32</p>
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<p>Add the numbers together: 79 + 32 = 111</p>
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<p>Add the numbers together: 79 + 32 = 111</p>
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<p>Using expansion method: 111 = 100 + 10 + 1 = CXI.</p>
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<p>Using expansion method: 111 = 100 + 10 + 1 = CXI.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h2>FAQs on 79 in Roman Numerals</h2>
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<h2>FAQs on 79 in Roman Numerals</h2>
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<h3>1.What is 9 in Roman numerals?</h3>
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<h3>1.What is 9 in Roman numerals?</h3>
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<p>IX is 9, as it has smaller numbers following larger ones using the subtraction method. That is X - I, which is 10 - 1 = 9.</p>
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<p>IX is 9, as it has smaller numbers following larger ones using the subtraction method. That is X - I, which is 10 - 1 = 9.</p>
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<h3>2.How to write 79 in Roman numerals?</h3>
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<h3>2.How to write 79 in Roman numerals?</h3>
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<p>Here, the larger numbers are followed by smaller ones, so we use the addition method. That is L(50) + XX(20) + IX(9) = 79. So, LXXIX is 79.</p>
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<p>Here, the larger numbers are followed by smaller ones, so we use the addition method. That is L(50) + XX(20) + IX(9) = 79. So, LXXIX is 79.</p>
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<h3>3.What is 16 in Roman Numerals?</h3>
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<h3>3.What is 16 in Roman Numerals?</h3>
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<p>16 in Roman Numerals is written as XVI.</p>
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<p>16 in Roman Numerals is written as XVI.</p>
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<h3>4.Is LXXIX a prime number?</h3>
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<h3>4.Is LXXIX a prime number?</h3>
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<p>No, LXXIX is not a<a>prime number</a>. Because 79 has<a>factors</a>other than 1 and itself, such as 7 and 11.</p>
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<p>No, LXXIX is not a<a>prime number</a>. Because 79 has<a>factors</a>other than 1 and itself, such as 7 and 11.</p>
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<h3>5.What are the multiples of 79?</h3>
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<h3>5.What are the multiples of 79?</h3>
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<p>The<a>multiples</a>of 79 are 79, 158, 237, 316, 395, and so on.</p>
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<p>The<a>multiples</a>of 79 are 79, 158, 237, 316, 395, and so on.</p>
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<h2>Important Glossaries for 79 in Roman Numerals</h2>
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<h2>Important Glossaries for 79 in Roman Numerals</h2>
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<ul><li><strong>Addition rule:</strong>The addition method is used when a large number is followed by a smaller numeral, here the values are added. For example, LXXIX = L + XX + IX = 50 + 20 + 9 = 79</li>
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<ul><li><strong>Addition rule:</strong>The addition method is used when a large number is followed by a smaller numeral, here the values are added. For example, LXXIX = L + XX + IX = 50 + 20 + 9 = 79</li>
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</ul><ul><li><strong>Grouping method:</strong>Here, the given numbers are grouped based on their place value, and then we convert each group into its Roman numeral. For example, 79 = 50 + 20 + 9 = LXXIX</li>
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</ul><ul><li><strong>Grouping method:</strong>Here, the given numbers are grouped based on their place value, and then we convert each group into its Roman numeral. For example, 79 = 50 + 20 + 9 = LXXIX</li>
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</ul><ul><li><strong>Repetition rule:</strong>Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times to represent the number 30).</li>
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</ul><ul><li><strong>Repetition rule:</strong>Certain symbols (I, X, C, M) in the Roman numeric system can be repeated only up to three times. For example, XXX = 30 (X is repeated three times to represent the number 30).</li>
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</ul><ul><li><strong>Subtraction rule:</strong>The subtraction method is used when a smaller numeral precedes a larger numeral. For example, IX = X - I = 10 - 1 = 9</li>
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</ul><ul><li><strong>Subtraction rule:</strong>The subtraction method is used when a smaller numeral precedes a larger numeral. For example, IX = X - I = 10 - 1 = 9</li>
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</ul><ul><li><strong>Place value:</strong>In Roman Numerals, the place value system helps to break down numbers into tens, hundreds, and thousands. For example, 79 can be broken down into 50 + 20 + 9.</li>
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</ul><ul><li><strong>Place value:</strong>In Roman Numerals, the place value system helps to break down numbers into tens, hundreds, and thousands. For example, 79 can be broken down into 50 + 20 + 9.</li>
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</ul><p>What Are Numbers? 🔢 | Fun Explanation with 🎯 Real-Life Examples for Kids | ✨BrightCHAMPS Math</p>
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</ul><p>What Are Numbers? 🔢 | Fun Explanation with 🎯 Real-Life Examples for Kids | ✨BrightCHAMPS Math</p>
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<h2>Hiralee Lalitkumar Makwana</h2>
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<h2>Hiralee Lalitkumar Makwana</h2>
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<h3>About the Author</h3>
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<h3>About the Author</h3>
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<p>Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.</p>
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<p>Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.</p>
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<h3>Fun Fact</h3>
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<h3>Fun Fact</h3>
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<p>: She loves to read number jokes and games.</p>
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<p>: She loves to read number jokes and games.</p>