What is the Number Name of 18 in Maths
The concept of 18 in words is essential in mathematics and helps in solving real-world and exam-level problems efficiently. Writing numbers in words accurately is a crucial skill for schoolwork, filling forms, writing cheques, and improving numeracy.
Understanding 18 in Words
The number 18 in words means expressing the numeral "18" as an English word. It is spelled as eighteen. Knowing how to write numbers in words, such as eighteen, is important for basic math, English grammar, and clear communication. This concept is widely used in number names, numerical to word conversion, and writing numbers in English spelling.
How to Write 18 in Words: Step-by-Step
Let’s break down the process of writing 18 in words:
2. Identify the digit in the ones place: 8
3. Multiply each digit by its place value:
8 × 1 = 8
4. Add the results: 10 + 8 = 18
5. Convert the parts to words: Ten + Eight = Eighteen
6. So, 18 in words = Eighteen
For students, remember the correct spelling: eighteen. This helps avoid common mistakes in exams and assignments.
Here’s a helpful table to understand 18 in words and review number names near it:
Number Names from 11 to 20
| Number | In Words |
|---|---|
| 11 | Eleven |
| 12 | Twelve |
| 13 | Thirteen |
| 14 | Fourteen |
| 15 | Fifteen |
| 16 | Sixteen |
| 17 | Seventeen |
| 18 | Eighteen |
| 19 | Nineteen |
| 20 | Twenty |
This table can be used for quick revision to recall spellings like eighteen and to compare with numbers before and after 18.
18 in Words in Other Languages
| Language | Word for 18 |
|---|---|
| English | Eighteen |
| Hindi | अठारह (Atharah) |
| Marathi | अठरा (Athra) |
| Tamil | பதினெட்டு (Padhinettu) |
| Gujarati | અઢાર (Adhaar) |
Learning 18 in words across different languages helps in regional studies and multicultural understanding.
Common Confusions and Mistakes
- Confusing eighteen (18) with eighty (80). Always check the spelling and value.
- Mixing up “eight” (8), “eighteen” (18), and “eighty” (80) in writing answers.
- Writing “eighteen” as “eightteen” (which is incorrect; correct is “eighteen”).
Worked Example – Writing 18 in Words
2. Break into place values: 1 in tens, 8 in ones
3. Expand: (1 × 10) + (8 × 1) = 10 + 8 = 18
4. Convert to words: Ten + Eight = Eighteen
5. The spelling is eighteen
Practice Problems
- Write 18 in words in English, Hindi, or Tamil.
- Spell these numbers: 17, 18, 19.
- Fill in the blank: 18 in words is _______.
- Write the next number after seventeen in words.
- Circle the correct spelling: eighteen / eightteen / eightine.
Real-World Applications
Writing numbers like 18 in words is important in filling out forms, writing cheques (e.g., “Eighteen rupees”), doing school assignments, and during oral tests. Vedantu makes these concepts easier to revise, helping students master number names for daily and exam use.
We explored the idea of 18 in words, its step-wise spelling process, tabular forms, and the way it’s used in daily tasks. You can practice more on Vedantu to improve your number name spelling and build numeracy confidence.
Related topics for further learning: 17 in Words, 19 in Words, Number Names 1 to 20, Number Name 1 to 50, Numbers in English, Tables 1 to 100, Multiples of 18, Tables 2 to 20.
FAQs on How to Write 18 in Words with Correct Spelling
1. What is 18 in words?
The number 18 in words is written as Eighteen. It is a two-digit number that comes after 17 and before 19 in the counting sequence. In standard English spelling, it is written as E‑I‑G‑H‑T‑E‑E‑N.
2. How do you spell 18 correctly in English?
The correct spelling of 18 is Eighteen.
- It starts with “eight”.
- Add “een” at the end.
- Do not confuse it with “eighty,” which represents 80.
3. How do you write 18 in words on a cheque?
You write 18 on a cheque as Eighteen Only.
- If it is ₹18, write: “Eighteen Only”.
- If it includes paise or cents, write the full amount in words.
4. What is the place value of digits in 18?
In 18, the digit 1 has a place value of 10 and the digit 8 has a place value of 8.
- 1 is in the tens place → 1 × 10 = 10
- 8 is in the ones place → 8 × 1 = 8
5. Is 18 an even or odd number?
The number 18 is an even number because it is divisible by 2 without leaving a remainder.
- 18 ÷ 2 = 9
- Remainder = 0
6. What are the factors of 18?
The factors of 18 are 1, 2, 3, 6, 9, and 18.
- 1 × 18 = 18
- 2 × 9 = 18
- 3 × 6 = 18
7. What is the prime factorization of 18?
The prime factorization of 18 is 2 × 3 × 3 or 2 × 3².
- 18 ÷ 2 = 9
- 9 ÷ 3 = 3
- 3 ÷ 3 = 1
8. How do you write 18 in Roman numerals?
The number 18 in Roman numerals is written as XVIII.
- X = 10
- V = 5
- III = 3
9. What comes before and after 18?
The number that comes before 18 is 17, and the number that comes after it is 19.
- 17 → 18 → 19
- They are consecutive natural numbers.
10. How do you write 18 in expanded form?
The expanded form of 18 is 10 + 8.
- 1 ten = 10
- 8 ones = 8
