Number Names 30 to 40
2026-02-28 19:04 Diff
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Last updated on August 5, 2025

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

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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.

Problem 1

What is the sum of 18 + 12 in words?

Okay, lets begin

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.

Well explained 👍

Problem 2

What is the difference of 40 - 5 in words?

Okay, lets begin

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.

Well explained 👍

Problem 3

Find the product of 6 and 5. Write the result in words

Okay, lets begin

Thirty

Explanation

The product is 30 → 6 × 5 = 30

Hence, 30 in words is Thirty.

Well explained 👍

Problem 4

What is (40 ÷ 2) + 10 in words

Okay, lets begin

Thirty

Explanation

((40 ÷ 2) + 10) = 20 + 10 = 30

We find the final result as 30.

Therefore, 30 is written as Thirty.

Well explained 👍

Problem 5

What is the product of 3 and 13 in words?

Okay, lets begin

Thirty-Nine

Explanation

The product of 3 and 13 is 39 → 3 × 13 = 39

So, 39 in words is Thirty-Nine.

Well explained 👍

FAQs on Number Names 30 to 40

1.What is the number name of 37?

The number name of the number 37 is Thirty-Seven.

2.What is (40 - 2)0 in words?

The difference is 38. Therefore, 38 in words is Thirty-Eight.

3.Which is correct for 35 Thirty-Four or Thirty-Five?

The correct number name for the number 35 is Thirty-Five.

4.How to write 326 using the Indian Numbering System?

326 in the Indian Numbering System is written as Three Hundred Twenty-Six.

5.What is the number form of five hundred?

The number form of five hundred is 500. Here, 5 is followed by two zeroes.

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.