CEFR A1

    Basic Numbers

    Learn essential vocabulary for basic numbers including counting, ages, prices, and simple mathematics from 1 to 100.

    Learning Objectives

    Learn numbers from 0 to 100 and how to use them in everyday situations.
    Practice saying numbers correctly for ages, prices, quantities, and addresses.
    Understand how to form and pronounce numbers like 21 (twenty-one) and 99 (ninety-nine).
    Finish the lesson feeling confident using numbers in real conversations!

    What Are Numbers Used For?

    Numbers are essential for everyday communication. We use them for ages, prices, quantities, dates, phone numbers, and addresses. Learning numbers helps you talk about your life, shop, make appointments, and share information.

    📖 A Day with Numbers

    Tom wakes up at seven o'clock every morning and catches bus number 42 to school.

    In his class, there are twenty-five students and one teacher.

    At lunch, he buys a sandwich for three dollars and fifty cents.

    After school, he calls his mum on his phone — her number ends with zero eight nine three.

    Numbers are everywhere in daily life! From telling the time, to buying things, to sharing your phone number — learning numbers will help you communicate every day.

    Numbers To Practice

    Basic Numbers: 0 - 10

    zero
    one
    two
    three
    four
    five
    six
    seven
    eight
    nine
    ten

    Teen Numbers 11 - 20

    eleven
    twelve
    thirteen
    fourteen
    fifteen
    sixteen
    seventeen
    eighteen
    nineteen
    twenty

    Numbers 20-100

    twenty
    thirty
    forty
    fifty
    sixty
    seventy
    eighty
    ninety
    one hundred

    Combined numbers

    21 twenty-one
    32 thirty-two
    47 forty-seven
    55 fifty-five
    68 sixty-eight
    73 seventy-three
    84 eighty-four
    99 ninety-nine

    Want to try a Basic Numbers quiz?

    Practice with multiple choice questions

    Using Numbers for Ages

    • I am 25 years old.
    • My sister is 18.
    • His son is 3 years old.
    • She will be 30 next month.
    • They have a 2-year-old daughter.

    Using Numbers for Prices

    • This book costs $15.
    • The coffee is $3.50.
    • My phone was $299.
    • Dinner cost $45 for two people.
    • The bus ticket is $2.25.

    Ready to test your Basic Numbers knowledge?

    Challenge yourself with fill-in-the-blank exercises

    Using Numbers for Quantities

    • I have two brothers.
    • There are 30 students in my class.
    • We need 5 apples.
    • She bought 12 eggs.
    • He has 100 books.

    Using Numbers for Addresses and Phone Numbers

    • I live at number 42 Main Street.
    • Her apartment is number 7B.
    • My phone number is 555-0123.
    • The zip code is 90210.
    • Room 204 is on the second floor.

    Master Basic Numbers sentence building!

    Drag and drop words to form correct sentences

    Useful Grammar Points

    Singular vs. Plural with Numbers

    When using numbers greater than 1, remember to use the plural form of nouns.

    • 1 year → 2 years (add "s" for plural)
    • 1 dollar → 5 dollars (add "s" for plural)
    • 1 brother → 3 brothers (add "s" for plural)
    • 1 child → 2 children (irregular plural)

    Number Pronunciation Patterns

    Learn these patterns to pronounce numbers correctly.

    • 21 = twenty-one (hyphen between tens and ones)
    • 100 = one hundred (no "s" on hundred)
    • 1,000 = one thousand (no "s" on thousand)
    • Numbers 13-19 end with "teen" (thirteen, fourteen, etc.)

    Common Mistakes to Avoid

    ❌ Wrong: I have two sister.

    ✓ Correct: I have two sisters. (use plural form with numbers greater than 1)

    ❌ Wrong: She is eighteen year old.

    ✓ Correct: She is eighteen years old. (use plural 'years' for ages 2+)

    ❌ Wrong: This cost twenty dollar.

    ✓ Correct: This costs twenty dollars. (use plural for currency with numbers greater than 1)

    ❌ Wrong: I live in number forty-two Main Street.

    ✓ Correct: I live at number 42 Main Street. (use 'at' for addresses, not 'in')

    Learning Tips

    Practice counting from 1 to 100 out loud every day
    Learn numbers in groups: 1-10, 11-20, 20-30, etc.
    Notice the pattern: twenty-one, twenty-two, twenty-three...
    Practice saying phone numbers and prices you see in stores
    Remember to use plural forms with numbers greater than 1
    Use "and" only for numbers like 101 (one hundred and one)

    Speaking Practice

    To practice your pronunciation, listen to the native speaker audio first. Then 'Record' yourself repeating what you heard, then use the 'Playback' button to compare your pronunciation with the native speaker. If you want to record yourself again, simply click 'Delete'!

    ✓ I have two sisters and one brother.

    ✓ She is eighteen years old.

    ✓ There are thirty students in my class.

    ✓ This phone costs $299.

    ✓ I live at number 42 Main Street.

    Remember!

    Numbers are everywhere in daily life! Practice regularly by reading prices, saying your phone number, and counting objects around you. Remember the patterns (thirteen, fourteen, fifteen...) and always use plural forms when the number is greater than 1. With practice, using numbers will become second nature! 🔢

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