How to Convert 18 into Roman Numerals
Roman numerals are made up of seven letters: I (1), V (5), X (10), L (50), C (100), D (500), and M (1000). To write a number like 18, we combine these letters starting from the largest value and working down to the smallest.
Let's break 18 into parts and build the Roman numeral step by step:
10 fits into what's left of the number one time.
That means we add X to our Roman numeral because one × ten equals 10.
5 fits into what's left of the number one time.
That means we add V to our Roman numeral because one × five equals 5.
1 fits into what's left of the number three times.
That means we add III to our Roman numeral because three × one equals 3.
Final Answer
After combining all the parts, the Roman numeral for 18 is:
XVIII
Tip: If a smaller numeral appears before a larger one (like IV), it means you subtract. If a smaller one comes after a larger one (like VI), it means you add. You'll see both styles when needed.
How to Convert the Roman Numeral XVIII into a Normal Number
To convert a Roman numeral to a normal number, we read it from left to right and add up the values of each symbol. However, if a smaller symbol appears before a larger one, we subtract the smaller value instead of adding it.
Let's break down XVIII step by step:
Step 1: We see X, which means we add ten (add 10).
Step 2: We see V, which means we add five (add 5).
Step 3: We see I, which means we add one (add 1).
Step 4: We see I, which means we add one (add 1).
Step 5: We see I, which means we add one (add 1).
Total calculation: X (10) + V (5) + I (1) + I (1) + I (1) = 18
Final Answer
The normal number for the Roman numeral XVIII is:
18
Tip: Remember the key rule - if a smaller numeral appears before a larger one (like IV), subtract the smaller value. If a smaller one comes after a larger one (like VI), add the values together.
What happened in the year 18?
In the year 18, Germanicus Caesar was granted a triumph for his victories in Germania.
In the year 18, Tiberius appointed Germanicus to command the eastern provinces of the Roman Empire.
In the year 18, the Roman Senate passed the Lex Julia de adulteriis coercendis, strengthening laws against adultery.
In the year 18, the kingdom of Cappadocia was annexed and became a Roman province.
In the year 18, a major earthquake struck the region of Asia Minor, causing significant damage.
