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101 LearnersLast updated on August 5, 2025
Number Names 30 to 40
Number names are a way of expressing the written form of numbers using letters. Learning number names will help you learn the basics of counting, addressing parcels, official documents, and so on. In this topic, we will learn number names from 30 to 40.
Number Names 30 to 40
These are the words that we use to represent numbers, which makes it easier to read. Take the number 35, it is written as ‘Thirty-Five’. Writing numbers in words not only helps us write legal documents and fill forms, but it also improves a student's spelling skills.
There are two different ways of naming numbers:
The Indian Numbering System and the International Numbering System.
You need to understand how numbers are named using both numbering systems. This will help you in communication as well as in arithmetic calculations.
Now let’s discuss the two numbering systems.
Indian Numbering System
In the Indian Numbering System, digits are assigned place values starting from the right. These place values include ones, tens, hundreds, and thousands, and continue to grow as the number increases.
For example, in the number 36, the digit 6 is in the ones place, and 3 is in the tens place.
Starting from the right, the order goes from:
ones → tens → hundreds → thousands → ten thousands → lakhs → ten lakhs → crores
Each digit has its value based on its position in the number.
Let’s take an example of the number 9,56,28,743
The number is written as:
Nine Crore Fifty-Six Lakhs Twenty-Eight Thousand Seven Hundred Forty-Three
The digits are placed as:
9 in the crores place
5 in the ten lakhs place
6 in the lakhs place
2 in the ten thousands place
8 in the thousands place
7 in the hundreds place
4 in the tens place
3 in the ones place
International Numbering System
Just like the Indian Numbering System, the International Numbering System also uses names, but they differ for larger numbers. In this system, place values start from the right and go in groups of three digits as you move to the left.
The place values are:
Ones → Tens → Hundreds → Thousands → Ten Thousands → Hundred Thousands → Millions → Ten Millions → Hundred Millions, and so on.
Let’s take the example of the number 743,856,269.
It is written as:
Seven Hundred Forty-Three Million Eight Hundred Fifty-Six Thousand Two Hundred Sixty-Nine
The digits are placed as:
7 in the Hundred Millions place
4 in the Ten Millions place
3 in the Millions place
8 in the Hundred Thousands place
5 in the Ten Thousands place
6 in the Thousands place
2 in the Hundreds place
6 in the Tens place
9 in the Ones place
Number Names 30 to 40 Chart
Learning the names of the numbers from 30 to 40 using a chart will make it easy for students to write the numbers in words. List of Numbers in Words 30 to 40 The list given below shows how numbers from 30 to 40 are written using letters. Learning to write the numbers in words improves their skills in reading and writing.
Rules for Writing Numbers from 30 to 40
While writing numbers from 30 to 40, there are certain rules to be followed. Below discussed are some rules to keep in mind while writing the names of numbers. Rule 1: Always start naming with ‘Thirty’ for any number from 30 to 39. For example, 35 is written as Thirty-Five. Rule 2: For numbers starting with 40, use “Forty.” For example, 41 is written as “Forty-One.” Rule 3: Numbers after 30 follow a pattern. For example, 34 is written as Thirty-Four, 37 is written as Thirty-Seven, and 39 is written as Thirty-Nine.
Tips and Tricks for Number Names 30 to 40
Always use a hyphen while writing numbers like 34 and 38. It should be written as Thirty-Four and Thirty-Eight. Always keep writing the numbers with ‘Thirty’, as in Thirty for 30 and Forty for 40. Always focus on the ones place for numbers like 31, 32, 33, etc. After writing Thirty, you just need to add the number, that's it. The mentioned numbers can be written as Thirty-One, Thirty-Two, and Thirty-Three.
Common Mistakes and How to Avoid Them in Number Names 30 to 40
Students can make mistakes while learning number names. Let’s discuss a few mistakes a student can make while writing numbers from 30 to 40.
Mistake 1
Ignoring the Hyphen
Ignoring hyphens while writing numbers like 35 and 38 will consider the number as separate numbers. For example, 35 should be written as Thirty-Five and not Thirty Five.
Mistake 2
Writing Forty Zero instead of Forty
Students might get confused between Forty Zero and Forty for 40. The correct way to express 40 in words is Forty. There’s no need to write zero after forty.
Mistake 3
Using ‘and’ while writing number names in American English
We use ‘and’ while writing number names only in British English. For example, 31 is written as Thirty and One. But in American English, we do not use ‘and’. The number 31 in American English is written as Thirty-One. Always make sure that students are aware of the difference.
Mistake 4
Incorrect spelling
While writing the number names, be sure that you have written it correctly. For example, a child can write Thirty-Four and Thirtee-Four.
Mistake 5
Getting confused with the tens and ones place
Students can get confused between numbers like 34 and 43. In 34, we have 4 in the ones place and 3 in the tens place. In 43, we have 3 in the ones place and 4 in the tens place. To avoid these, students need to learn how to pronounce the numbers correctly. Once they learn to pronounce the numbers, they can write the number names correctly.
Number Names 30 to 40 Examples
Problem 1
What is the sum of 18 + 12 in words?
Thirty
Explanation
First, we need to find the sum 18 + 12
The sum is 30 → 18 + 12 = 30
We write 30 in words as Thirty.
Problem 2
What is the difference of 40 - 5 in words?
Thirty-Five
Explanation
We need to find the difference between 40 and 5
The difference is 35 → 40 - 5 = 35
Therefore, we write the answer as Thirty-Five.
Problem 3
Find the product of 6 and 5. Write the result in words
Thirty
Explanation
The product is 30 → 6 × 5 = 30
Hence, 30 in words is Thirty.
Problem 4
What is (40 ÷ 2) + 10 in words
Thirty
Explanation
((40 ÷ 2) + 10) = 20 + 10 = 30
We find the final result as 30.
Therefore, 30 is written as Thirty.
Problem 5
What is the product of 3 and 13 in words?
Thirty-Nine
Explanation
The product of 3 and 13 is 39 → 3 × 13 = 39
So, 39 in words is Thirty-Nine.
FAQs on Number Names 30 to 40
1.What is the number name of 37?
2.What is (40 - 2)0 in words?
3.Which is correct for 35 Thirty-Four or Thirty-Five?
4.How to write 326 using the Indian Numbering System?
5.What is the number form of five hundred?
Important Glossaries for Number Names 30 to 40
- Place Value: The value of a digit based on its position within a given number. For example, in 32, we place 2 in the ones place and 3 in the tens place.
- Number Form: It is the numerical form of a number written in words. For example, the number form of Thirty-Four is 34.
- Hyphen: A punctuation mark (-) used to join words. For example, Thirty-Four is written with a hyphen between thirty and four.
- Ones Place: The rightmost digit of a number, which represents units. For example, in 39, 9 is in the ones place.
- Tens Place: The second digit from the right in a number, representing tens. For example, in 39, 3 is in the tens place.
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Hiralee Lalitkumar Makwana
About the Author
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.
Fun Fact
: She loves to read number jokes and games.
