BrightChamps Logo
Login

Summarize this article:

Live Math Learners Count Icon103 Learners

Last updated on August 5, 2025

Number Names 1 to 25

Professor Greenline Explaining Math Concepts

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 1 to 25.

Number Names 1 to 25 for US Students
Professor Greenline from BrightChamps

Number Names 1 to 25

These are the words that we use to represent numbers, which makes it easier to read.
Take the number 15, it is written as ‘Fifteen’.

Writing numbers in words not only helps us write legal documents and fill out forms, but it also helps improve a student's spelling skills.

There are two different ways of naming numbers:

  1. Indian Numbering System

  2. 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.

Professor Greenline from BrightChamps

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 18, the digit 8 is in the ones place and 1 is in the tens place.

Starting from the right, the order goes:
Ones → Tens → Hundreds → Thousands → Ten Thousands → Lakhs → Ten Lakhs → Crores

Each digit will have its value based on its position in the number.

Let’s take an example of the number 9,567.
The number is written as:
Nine Thousand Five Hundred Sixty-Seven

The number gets placed as:
9 in the Thousands place
5 in the Hundreds place
6 in the Tens place
7 in the Ones place

Professor Greenline from BrightChamps

International Numbering System

Just like the Indian Numbering System, the International Numbering System also uses names, and they differ for bigger numbers. The place value starts from the right. The place values are:
Ones, Tens, Hundreds, Thousands, Hundred Thousands, Millions, Ten Millions, Hundred Millions, and so on.

Let’s take the example of 4,269.
The number is written as:
Four Thousand Two Hundred Sixty-Nine

The number gets placed as:
4 in the Thousands place
2 in the Hundreds place
6 in the Tens place
9 in the Ones place

Professor Greenline from BrightChamps

Number Names 1 to 25 Chart

Learning the names of the numbers from 1 to 25 using a chart will make it easy for the students to write the numbers in words. List of Numbers in Words 1 to 25 The list given below shows how numbers from 1 to 25 are written using letters. Learning to write the numbers in words improves their skills in reading and writing.

Professor Greenline from BrightChamps

Rules for Writing Numbers from 1 to 25

While writing numbers from 1 to 25, there are certain rules to be followed. Below are some rules to keep in mind while writing the names of numbers:

Rule 1: Numbers 1 to 9 are written as One, Two, Three, and so on.
For example, 5 is written as Five.

Rule 2: Numbers 10 to 19 follow a unique naming pattern.
For example, 13 is written as Thirteen, and 17 is written as Seventeen.

Rule 3: Numbers 20 to 25 follow a pattern of Tens and Ones.
For example, 24 is written as Twenty-Four, and 21 is written as Twenty-One.

Professor Greenline from BrightChamps

Tips and Tricks for Number Names 1 to 25

Always use a hyphen while writing numbers like 21 and 25. It should be written as Twenty-One and Twenty-Five. Always focus on unique names for numbers from 10 to 19, such as Eleven, Twelve, Thirteen, etc. For numbers beyond 20, combine Twenty with numbers from 1 to 5, like Twenty-One, Twenty-Two, etc.

Max Pointing Out Common Math Mistakes

Common Mistakes and How to Avoid Them in Number Names 1 to 25

Students can make mistakes while learning number names. Let’s discuss a few mistakes a student can make while writing numbers from 1 to 25.

Mistake 1

Red Cross Icon Indicating Mistakes to Avoid in This Math Topic

Ignoring the Hyphen

Green Checkmark Icon Indicating Correct Solutions in This Math Topic

Ignoring hyphens while writing numbers like 21 and 25 will consider the number as separate numbers. For example, 21 should be written as Twenty-One and not Twenty One.

Mistake 2

Red Cross Icon Indicating Mistakes to Avoid in This Math Topic

Incorrect spelling of unique names

Green Checkmark Icon Indicating Correct Solutions in This Math Topic

Students might get confused with the spelling of numbers like Eleven, Twelve, etc. It’s important to memorize the correct spellings.

Mistake 3

Red Cross Icon Indicating Mistakes to Avoid in This Math Topic

Using ‘and’ unnecessarily

Green Checkmark Icon Indicating Correct Solutions in This Math Topic

We use ‘and’ sometimes while speaking, but it's not used in writing these number names. For example, 21 is correctly written as Twenty-One, not Twenty and One.

Mistake 4

Red Cross Icon Indicating Mistakes to Avoid in This Math Topic

Incorrect spelling

Green Checkmark Icon Indicating Correct Solutions in This Math Topic

While writing the number names, be sure that you have written it correctly. For example, a child might write Fourteen as Forten, which is incorrect.

Mistake 5

Red Cross Icon Indicating Mistakes to Avoid in This Math Topic

Getting confused with numbers from 13 to 19

Green Checkmark Icon Indicating Correct Solutions in This Math Topic

Students can get confused between numbers like 13 and 30. In 13, we have Thirteen, and in 30, we have Thirty. 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.

arrow-right
Max from BrightChamps Saying "Hey"
Hey!

Number Names 1 to 25 Examples

Ray, the Character from BrightChamps Explaining Math Concepts
Max, the Girl Character from BrightChamps

Problem 1

What is the sum of 5 + 10 in words?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"
Okay, lets begin

Fifteen

Explanation

First, we need to find the sum 5 + 10

The sum is 15 → 5 + 10 = 15

We write 15 in words as Fifteen.

Max from BrightChamps Praising Clear Math Explanations
Well explained 👍
Max, the Girl Character from BrightChamps

Problem 2

What is the difference of 25 - 5 in words?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"
Okay, lets begin

Twenty

Explanation

We need to find the difference between 25 and 5

The difference is 20 → 25 - 5 = 20

Therefore, we write the answer as Twenty.

Max from BrightChamps Praising Clear Math Explanations
Well explained 👍
Max, the Girl Character from BrightChamps

Problem 3

Find the product of 5 and 4. Write the result in words

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"
Okay, lets begin

Twenty

Explanation

The product is 20 → 5 × 4 = 20

Hence, 20 in words is Twenty.

Max from BrightChamps Praising Clear Math Explanations
Well explained 👍
Max, the Girl Character from BrightChamps

Problem 4

What is (20 ÷ 2) + 3 in words

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"
Okay, lets begin

Thirteen

Explanation

((20 ÷ 2) + 3) = 10 + 3 = 13

We find the final result as 13.

Therefore, 13 is written as Thirteen.

Max from BrightChamps Praising Clear Math Explanations
Well explained 👍
Max, the Girl Character from BrightChamps

Problem 5

What is the product of 3 and 7 in words?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"
Okay, lets begin

Twenty-One

Explanation

The product of 3 and 7 is 21 → 3 × 7 = 21

So, 21 in words is Twenty-One.

Max from BrightChamps Praising Clear Math Explanations
Well explained 👍
Ray Thinking Deeply About Math Problems

FAQs on Number Names 1 to 25

1.What is the number name of 19?

The number name of the number 19 is Nineteen.

Math FAQ Answers Dropdown Arrow

2.What is (25 - 5) in words?

The difference is 20. Therefore, 20 in words is Twenty.

Math FAQ Answers Dropdown Arrow

3.Which is correct for 15: Fifteen or Fifty?

The correct number name for number 15 is Fifteen.

Math FAQ Answers Dropdown Arrow

4.How to write 567 using the Indian Numbering System?

567 in the Indian Numbering System is written as Five Hundred Sixty-Seven.

Math FAQ Answers Dropdown Arrow

5.What is the number form of a thousand?

The number form of a thousand is 1,000. Here, 1 is followed by three zeroes.

Math FAQ Answers Dropdown Arrow
Professor Greenline from BrightChamps

Important Glossaries for Number Names 1 to 25

  • Place Value: The value of a digit based on its position in a number.
    Example: In 123, 3 is in the ones place, 2 in the tens place, and 1 in the hundreds place.

 

  • Number Form: The numerical form of a number written in words.
    Example: Twenty-Three → 23

 

  • Hyphen: A punctuation mark (-) used to join two parts of a number name.
    Example: Twenty-One, Twenty-Four

 

  • Unique Number Names: Numbers from 10 to 19 with special names.
    Example: Eleven, Twelve, Thirteen

 

  • Tens and Units: Numbers from 20 onwards named by combining tens and units.
    Example: Twenty-One, Twenty-Two

Math Teacher Background Image
Math Teacher Image

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.

Max, the Girl Character from BrightChamps

Fun Fact

: She loves to read number jokes and games.

INDONESIA - Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta
INDIA - H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034
SINGAPORE - 60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)
USA - 251, Little Falls Drive, Wilmington, Delaware 19808
VIETNAM (Office 1) - Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City
VIETNAM (Office 2) - 143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam
UAE - BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates
UK - Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom