Lesson 3: Numbers and Age (Counting Numbers, 二 & 两)

Counting Numbers in Mandarin

In Mandarin Chinese, numbers are simple to learn once you know the basic digits. Here are the first ten numbers:

NumberChinese CharacterPinyinEnglish Translation
0língZero
1One
2èrTwo
3sānThree
4Four
5Five
6liùSix
7Seven
8Eight
9jiǔNine

Numbers 10 to 99

To form numbers from 10 to 99, we combine the digits for 1-9 with the word for ten (十, shí). For example:

  • 10 → 十 (shí)
  • 11 → 十一 (shí yī)
  • 20 → 二十 (èr shí)
  • 21 → 二十一 (èr shí yī)
  • 30 → 三十 (sān shí)

This pattern continues, so 99 would be 九十九 (jiǔ shí jiǔ).


Special Usage of 二 (èr) and 两 (liǎng)

  • 二 (èr): This is used when you’re talking about numbers in isolation or when you’re counting (e.g., 二十, 20). It is also used in larger numbers like 二百 (200), 二千 (2000), etc.
  • 两 (liǎng): This is used when counting objects or people. It is also used before measure words (classifiers). For example:
    • 两个 (liǎng gè) → two (of something)
    • 两本书 (liǎng běn shū) → two books
    • 两个人 (liǎng gè rén) → two people
In Chinese, 个 (gè) is one of the most commonly used measure words (classifiers), and it can be used for a wide range of objects, especially when you don’t have a specific measure word for the noun you're counting. It’s often used for general items and people.

For example:

一个人 (yī gè rén) → one person

两个苹果 (liǎng gè píngguǒ) → two apples

三个书包 (sān gè shūbāo) → three backpacks

While 个 (gè) is versatile, it’s important to remember that in specific contexts, other measure words might be more appropriate, depending on the noun you're counting. For example, for books, we use 本 (běn) instead of 个 (gè): 两本书 (liǎng běn shū) → two books.

This concept will be covered more thoroughly in a later lesson, but for now, just know that 个 (gè) is used broadly and is especially useful when you’re unsure which classifier to use.

Key Differences:

  • Use 二 (èr) when you’re counting or giving numbers.
  • Use 两 (liǎng) when referring to quantities or pairs of items.

Age and Saying Your Age in Mandarin

To ask someone’s age, you can say:

  • 你多大? (nǐ duō dà?) → How old are you?

To answer:

  • 我XX岁。 (wǒ XX suì) → I am XX years old.

For example:

  • 我二十岁。 (wǒ èr shí suì) → I am 20 years old.
  • 我三十岁。 (wǒ sān shí suì) → I am 30 years old.

Note: You use the regular number system for your age, with 二 (èr) or 两 (liǎng) based on the context:

  • 二十 (èr shí) → 20 (for counting years directly).
  • 两岁 (liǎng suì) → two years old (for talking about age of a small child).

Practice Exercises