Numbers 1 to 100: Learn How to Count in English

Learning numbers 1 to 100 in English is an important step for every English learner. We use numbers every day when talking about age, prices, time, dates, phone numbers, addresses, quantities, and more.

In this guide, you’ll learn how to count from 1 to 100 in English, write each number correctly, and understand the simple patterns used to form larger numbers.

You’ll also learn useful pronunciation tips and practice with examples that can help you use English numbers confidently in everyday conversations.

Let’s start with the numbers from 1 to 10 and gradually work our way up to 100.

Why Learn Numbers 1 to 100 in English?

Numbers are an essential part of everyday communication. Learning how to count in English helps you understand and use numbers confidently in many common situations.

You need English numbers to:

• Talk about age: “I am twenty-five years old.”
• Discuss prices: “This book costs fifteen dollars.”
• Tell the time: “The class starts at nine o’clock.”
• Give dates: “My birthday is on July twenty-first.”
• Talk about quantities: “We need ten chairs.”
• Understand addresses and phone numbers: Numbers frequently appear in contact information and locations.
• Count everyday objects: You can count books, people, days, steps, and many other things.

Once you learn the basic numbers and patterns, counting from 1 to 100 becomes much easier. These same patterns will also help you understand larger numbers later.

The Basics of Counting in English

Before learning all the numbers from 1 to 100, it helps to understand how English numbers are formed. You do not need to memorize 100 completely different words. Once you learn the basic numbers and the tens, you can build most numbers by following a simple pattern.

Understanding Number Pronunciation

Start by learning the numbers one to ten. These are the basic building blocks for many other numbers in English.

Pay special attention to numbers that may be difficult to pronounce, such as:

• Three – practice the th sound at the beginning.
• Five – ends with a v sound.
• Eight – pronounced like “ate.”
• Twelve – begins with the consonant combination tw.

You should also learn to hear the difference between -teen and -ty numbers. For example:

• thirteen and thirty
• fourteen and forty
• fifteen and fifty
• sixteen and sixty
• seventeen and seventy
• eighteen and eighty
• nineteen and ninety

The -teen ending is usually stressed more strongly, while -ty numbers have a different rhythm. Listening to these differences will help you understand numbers more accurately in conversations.

As you learn each group of numbers, say them aloud several times. This will help you practice both pronunciation and counting.

Numbers 1 to 10 in English

Let’s begin with the first ten numbers. These are the basic numbers you need to memorize because they form the foundation for counting in English.

Practice reading these numbers aloud several times. Once you can recognize and say them easily, move on to numbers 11 to 20.

Pay particular attention to three, which begins with the th sound, and eight, which is pronounced the same as the word ate.

Numbers 11 to 20 in English

After learning numbers 1 to 10, the next step is learning 11 to 20. Eleven and twelve have unique forms, while most numbers from 13 to 19 end in -teen.

Understanding the -teen Pattern

From 13 to 19, most numbers follow a recognizable -teen pattern:

• three → thirteen

• four → fourteen

• six → sixteen

• seven → seventeen

• eight → eighteen

• nine → nineteen

However, some spellings change. For example, five becomes fifteen, not “fiveteen.”

It is also important to distinguish teen numbers from tens when speaking and listening. For example:

• thirteen (13) and thirty (30)

• fourteen (14) and forty (40)

• fifteen (15) and fifty (50)

• eighteen (18) and eighty (80)

Practice saying these pairs aloud so you can hear and pronounce the difference clearly.

Tens in English: 20, 30, 40, 50, 60, 70, 80, and 90

Once you know numbers 1 to 20, the next step is learning the tens. These numbers are important because we use them to form almost every number from 21 to 99.

Important Spelling Changes

Some tens do not follow the spelling you might expect from their smaller numbers. Pay attention to these common examples:

• 20 – twenty: “two” changes to “twen-.”

• 30 – thirty: “three” changes to “thir-.”

• 40 – forty: The correct spelling is forty, not “fourty.”

• 50 – fifty: “five” changes to “fif-.”

• 80 – eighty: The correct spelling is eighty, not “eightty.”

These spellings are worth memorizing because they are also used when forming other numbers, such as forty-two, fifty-six, and eighty-nine.

Teen Numbers vs. Tens

Be careful not to confuse numbers ending in -teen with numbers ending in -ty.

Practice reading these pairs aloud. Being able to recognize the difference between thirteen and thirty or fifteen and fifty is especially useful when hearing ages, prices, addresses, and other numbers in everyday conversations.

Now, let’s look at the tens:

• 20: Twenty
• 30: Thirty
• 40: Forty
• 50: Fifty
• 60: Sixty
• 70: Seventy
• 80: Eighty
• 90: Ninety

These form the foundation for numbers beyond 20. Practice saying each one, paying attention to their unique pronunciations.

Combining Tens and Units

To form numbers from 21 to 99, combine the tens with units:

• 21: Twenty-one
• 32: Thirty-two
• 43: Forty-three
• 54: Fifty-four
• 65: Sixty-five
• 76: Seventy-six
• 87: Eighty-seven
• 98: Ninety-eight

Notice the pattern? It’s straightforward once you get the hang of it. Practice combining different tens and units to build your confidence.

Numbers 21 to 100 in English

Once you know the tens and the numbers 1 to 9, counting from 21 to 99 becomes much easier. Simply combine the tens with the unit number.

For example:

• 20 + 1 = twenty-one

• 30 + 5 = thirty-five

• 60 + 8 = sixty-eight

• 90 + 9 = ninety-nine

When writing numbers from 21 to 99 that are not exact tens, use a hyphen (-) between the tens and the units. For example, write twenty-one, forty-six, and ninety-nine.

Here is the complete list:

How Numbers 21 to 99 Are Formed

The pattern is simple:

tens + units

For example:

• 24 = twenty + four → twenty-four

• 37 = thirty + seven → thirty-seven

• 52 = fifty + two → fifty-two

• 68 = sixty + eight → sixty-eight

• 94 = ninety + four → ninety-four

Exact tens such as twenty, thirty, forty, fifty, and sixty do not need a hyphen.

How to Say 100 in English

The number 100 is written as one hundred.

For example:

• “There are one hundred students.”

• “The book has one hundred pages.”

• “I counted from one to one hundred.”

After learning numbers 1 to 100, you already have the basic patterns needed to begin learning larger numbers in English.

Practice Exercise

Try these exercises to reinforce your learning:

1. Write down a random number (e.g., 47) and say it out loud.
2. Count from 21 to 30, 31 to 40, and so on, until 99.
3. Use numbers in sentences, like “I have twenty-five apples.”

Practice Exercises: Numbers 1 to 100

Now that you have learned the numbers from 1 to 100 in English, try these simple exercises to test yourself.

Exercise 1: Write the Numbers in Words

Write each number in English words:

1. 12 = __________

2. 27 = __________

3. 35 = __________

4. 48 = __________

5. 56 = __________

6. 63 = __________

7. 74 = __________

8. 89 = __________

9. 95 = __________

10. 100 = __________

Exercise 2: Write the Correct Number

Read each number word and write it as a numeral:

1. Twenty-three = __________

2. Thirty-seven = __________

3. Forty-five = __________

4. Fifty-nine = __________

5. Sixty-two = __________

6. Seventy-eight = __________

7. Eighty-four = __________

8. Ninety-one = __________

Exercise 3: Complete the Sequence

Fill in the missing numbers:

1. 18, 19, ___, 21, 22

2. 28, 29, ___, 31, 32

3. 47, 48, ___, 50, 51

4. 68, 69, ___, 71, 72

5. 97, 98, ___, 100

Exercise 4: Practice Speaking

Read these numbers aloud:

13, 30, 14, 40, 15, 50, 18, 80, 19, 90

Pay attention to the difference between -teen and -ty endings.

Then choose ten random numbers between 1 and 100 and say each one aloud without looking at its spelling.

Answers

Exercise 1: twelve, twenty-seven, thirty-five, forty-eight, fifty-six, sixty-three, seventy-four, eighty-nine, ninety-five, one hundred.

Exercise 2: 23, 37, 45, 59, 62, 78, 84, 91.

Exercise 3: 20, 30, 49, 70, 99.

How to Learn and Remember Numbers 1 to 100

You do not need to memorize all 100 numbers separately. English numbers follow predictable patterns, so learning them in small groups makes counting much easier.

1. Learn Numbers in Small Groups

Start with 1 to 10, then learn 11 to 20. After that, memorize the tens: twenty, thirty, forty, fifty, sixty, seventy, eighty, and ninety.

Once you know these numbers, you can form most numbers up to 100 by combining tens and units.

2. Count Aloud Every Day

Practice counting aloud from 1 to 20 first. Gradually increase the range until you can count from 1 to 100 without stopping.

You can also practice counting backward, such as:

20, 19, 18, 17, 16…

This helps you recognize numbers instead of simply memorizing one sequence.

3. Practice Teen and Tens Numbers

Spend extra time practicing number pairs that sound similar:

• thirteen and thirty

• fourteen and forty

• fifteen and fifty

• sixteen and sixty

• seventeen and seventy

• eighteen and eighty

• nineteen and ninety

Say each pair aloud and listen carefully to the difference between -teen and -ty.

4. Write Numbers in Words

Choose several numbers each day and write their spellings.

For example:

• 26 → twenty-six

• 41 → forty-one

• 57 → fifty-seven

• 83 → eighty-three

• 99 → ninety-nine

Writing the numbers will help you remember spellings such as forty, fifty, and eighty.

5. Count Objects Around You

Practice English numbers with objects you see every day. You can count books, chairs, steps, pencils, cars, or anything else around you.

For example:

• “I have five books.”

• “There are twelve chairs.”

• “I counted twenty steps.”

6. Use Numbers in Everyday English

Try using numbers whenever you practice speaking English. Talk about your age, prices, dates, time, quantities, addresses, or other everyday information.

For example:

• “The bus arrives at eight.”

• “This shirt costs thirty dollars.”

• “There are twenty-five students in the class.”

Regular practice will help you recognize, spell, and say English numbers more naturally.

Common Mistakes with English Numbers

English numbers follow simple patterns, but a few spellings and pronunciations can be confusing. Here are some common mistakes to avoid.

1. Writing “Fourty” Instead of “Forty”

The correct spelling of 40 is forty, not “fourty.”

• ❌ fourty

• ✅ forty

• ✅ forty-one

• ✅ forty-five

2. Writing “Fivety” Instead of “Fifty”

The number 50 is spelled fifty.

• ❌ fivety

• ✅ fifty

• ✅ fifty-two

• ✅ fifty-nine

3. Writing “Eightty” Instead of “Eighty”

The correct spelling of 80 is eighty.

• ❌ eightty

• ✅ eighty

• ✅ eighty-three

• ✅ eighty-nine

4. Confusing -teen and -ty Numbers

Numbers such as thirteen and thirty can sound similar to English learners, but they represent very different numbers.

For example:

• thirteen = 13

• thirty = 30

• fourteen = 14

• forty = 40

• fifteen = 15

• fifty = 50

• eighteen = 18

• eighty = 80

Practice listening to and saying these numbers aloud so you can recognize the difference.

5. Forgetting Hyphens in Written Numbers

When writing compound numbers from 21 to 99, use a hyphen between the tens and units.

For example:

• 21 = twenty-one

• 36 = thirty-six

• 47 = forty-seven

• 65 = sixty-five

• 99 = ninety-nine

Exact tens do not need hyphens:

• 20 = twenty

• 40 = forty

• 70 = seventy

• 90 = ninety

Learning these simple rules will help you write and pronounce numbers in English more accurately.

Conclusion

Learning numbers 1 to 100 in English gives you an important foundation for using English in everyday life. Once you know the basic numbers, the tens, and the patterns used to form compound numbers, counting to 100 becomes much easier.

Remember to practice both spelling and pronunciation, especially commonly confused pairs such as thirteen and thirty, fourteen and forty, and fifteen and fifty.

Try counting aloud, writing random numbers in words, and using numbers when talking about prices, time, age, dates, and quantities. Regular practice will help you use English numbers more confidently.

Once you are comfortable counting from 1 to 100, continue building your number skills by learning how to write numbers in English and how larger numbers in English are formed.

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Continue learning how numbers are written and used in English with these related guides:

• Numbers in English – Learn how English numbers are formed and used beyond basic counting.

• How to Write Numbers in English – Learn the rules for writing numbers correctly in words.

• Basic and Important Math Symbols in English – Learn common mathematical symbols and their English names.