We all want to get first place in something, like sport, but might settle for second. These types of numbers, like *first, second, third, fourth,* etc. which show the position of something in a group are called ordinal numbers.

Ordinal numbers can also be written as ** 1st, 2nd, 3rd, 4th**, etc. such as for dates.

E.g. *The wedding is on the **7th **September.*

**Forming Ordinal Numbers **

Ordinal numbers are usually formed, by adding "th" to the end of a cardinal number (*cardinal* - a regular number, like 1, 2, 3, etc.).

four ➡ fourth / 4th

six ➡ sixth / 6th

seven ➡ seventh / 7th

However, a common mistake I have seen made by English learners when writing ordinal numbers in the short form (5th, etc.) is adding "th" to the end of all of them. Unfortunately, this isn't always the case.

**Irregular ordinal Numbers**

first ➡ ✅ 1st ❌ 1th

second➡ ✅ 2nd ❌ 2th

third ➡ ✅ 3rd ❌ 3th

*The meeting is on the **1st** of every month.*

*Let's meet on the **2nd** August.*

*We're watching the show on the **3rd** December.*

**Other Irregularities**

five ➡ fifth / 5th ❌ fivth

eight ➡ eighth / 8th ❌ eightth

nine ➡ ninth 9th ❌ nineth

twelve ➡ twelfth / 12th ❌ twelvth

Numbers that end in **"***y***"** have the **"***ieth***" **ending in their ordinal form.

twenty ➡ twentieth / 20th

thirty ➡ thirtieth / 30th

forty ➡ fortieth / 40th

Test your knowledge. Try a quiz about ordinal numbers:

__Ordinal Numbers Quiz__

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