Korean Numbers Worksheet: Free Printable PDF with Answer Key

Download the Korean Numbers Worksheet

Choose A4 or US Letter on the card. Print the four exercise pages together and the key page separately. The PDF is available in A4 and US Letter from the download card. The full content of every page is described below.

What Is on Each Page?

Each page practises a different decision. Page 1 is about forms, page 2 about choosing, page 3 about counters and page 4 about reading large values.

Page 1: Write 1 to 20 in Both Systems

Page 1 is a table of 20 rows. Each row shows a numeral and has two boxes: one for the Sino-Korean word and one for the native Korean word. Rows 1 to 3 are dotted models that you trace. For example, row 1 is 1, 일 and 하나; row 10 is 10, 십 and 열; row 20 is 20, 이십 and 스물. The teens follow a pattern, because Sino 11 to 19 are 십 plus a digit, and native 11 to 19 are 열 plus a digit.

Page 2: Choose the System for Age, Time, Money and Date

Page 2 lists twelve situations. For each you circle S for Sino-Korean or N for native, and write the Korean words. The situations include age 25 (스물다섯 살), three people (세 명), May (오월), 3,000 won (삼천 원), 7 o'clock (일곱 시), 30 minutes (삼십 분), phone prefix 010, the 4th floor, two cups of tea, June (유월), age 20 (스무 살) and room 301. The model answer for age 25 is played below.

Page 3: Counters Fill-In

Page 3 has eight sentences with a blank before a counter. The four counters are 명 (people), 마리 (animals), 잔 (cups) and 개 (items). You write the counter form of the native number, such as 세 in 학생 세 명, 두 in 강아지 두 마리 and 한 in 커피 한 잔. Hear the first model below.

Page 4: Read Prices and Times

Page 4 shows eight prices and times in numerals and asks for the Korean words. Prices use Sino-Korean numbers plus 원, and drop the leading 일 before 만, 천 and 백: 10,000 won is 만 원, and 35,000 won is 삼만 오천 원. Times use a native hour and Sino-Korean minutes: 3:15 is 세 시 십오 분. The page ends with a short writing task: write your own age as 저는 ___ 살이에요. Hear two models below.

The Answer Key

The key lists the Sino-Korean and native words for page 1, the system and answer for each situation on page 2, the full phrases for page 3 and the readings for page 4. The writing task is a personal answer, so it is not in the key.

How Do I Use This Sheet?

Plan 35 to 45 minutes, or split the sheet over two days. Do pages 1 and 2 on the first day and pages 3 and 4 on the second.

1. Trace the three models, then write from memory. Checkpoint: you can write the number words for 1 to 10 in both systems without looking.
2. Say each answer aloud before you write it. Hearing the form helps the spelling stick.
3. Use real receipts. Take a shop receipt or a bus ticket and read its prices and times aloud in Korean. Real numbers show how often the system choice appears.
4. Check with the number converter. Use the Korean number converter to confirm a reading, after you have written your own answer.
5. Mark the key last. Check each page, then rewrite the wrong items.

Pair the sheet with the Korean numbers flashcards, so you practise the same items on screen and by hand.

What Is the Answer Key For?

The key is a separate last page, so you can print it apart from the exercises. Use it after you finish a page, not while you work. If an item on page 2 is wrong, ask whether the situation counts things (native) or labels them (Sino-Korean), and then rewrite the whole phrase, including the counter or unit.

Print Settings

Print at 100 percent scale, in black and white, on A4 or US Letter, with 12 mm margins for hole punching. Turn off fit-to-page, since scaling shrinks the writing boxes. Print the key on its own sheet if you share the worksheet with others. A pencil is better than a pen for the first pass.

Mistakes to Watch For

• Using Sino-Korean numbers for age. Say 스물다섯 살, not 이십오 살, in everyday speech.
• Writing 일 만 or 일만 for 10,000. The leading 일 is dropped in prices, so say 만 원.
• Forgetting 스무. Twenty is 스물 alone but 스무 before a counter, as in 스무 살.
• Using the full form before a counter. Say 한 잔 and 두 마리, not 하나 잔 or 둘 마리.
• Mixing systems inside a time. Use a native hour and Sino minutes, as in 세 시 십오 분.

Most of the errors come from the choice between systems, so page 2 matters most.

What This Worksheet Does Not Cover

The sheet stops at 120,000 won for prices and at 25 for native numbers. It covers four counters, not the full list, and it does not cover ordinal numbers, decimals or numbers above 120,000. Learn these in the Korean numbers lesson. The sheet is hand practice, so it does not teach how to say the numbers aloud.

What Should I Practice Next?

After the sheet, drill the same items with the Korean numbers flashcards and test yourself with the Korean numbers quiz. Print a chart with the Korean numbers chart printable and find other sheets in the Korean vocabulary worksheets collection. The 100 Korean words worksheet is a good next sheet.

Frequently Asked Questions

Which Numbers Are on the Worksheet?

Page 1 covers 1 to 20 in both systems. Pages 2 to 4 use larger numbers where the situation needs them, such as 25 for age, 301 for a room, and prices up to 120,000 won. The native numbers on the sheet stay below 30, and the largest Sino-Korean value is 120,000.

Is a Converter Needed?

No, but it helps. Do the sheet first, then check your answers with the key. For numbers that are not on the sheet, use the Korean number converter, which shows the Hangul reading and says whether Sino-Korean or native Korean applies. The converter checks; it does not replace the writing practice.

Are Counters Included?

Yes, four of them. Page 3 uses 명 for people, 마리 for animals, 잔 for cups and 개 for general items. Each blank needs the counter form of a native number, such as 세, 두, 한 and 네. Other counters are covered in the counters lesson and the counters flashcards.

Is Audio Linked?

The printed PDF has no audio. This page has play buttons for four model answers, and the Korean numbers flashcards deck has a clip for every card. Hear the model, say it aloud, then write. The clips are generated and were approved by Min-ji Park on 15 October 2026.

Is the Worksheet Free to Print?

Yes. It is free for personal and classroom use, with no sign-up or email. Print on A4 or US Letter at 100 percent scale, and keep the key page separate. Please link to this page rather than re-hosting the PDF so learners always get the latest corrected version.

May I Use These Worksheets in Class?

Free for personal and classroom use. Teachers may print copies for their students. No reselling or republishing online.