Number Worksheets 0 to 20
Updated October 2026 · 21 free printables
One colorful page for every number from 0 to 20. Kids color a big numeral, trace it from the green start dot to the red finish dot, count dots in a ten frame, count and color pictures, and fill in the numbers that come before and after.
Numbers 0 to 10 suit preschool and pre-K; 11 to 20 are for kindergarten, with a second ten frame that shows 'ten and some more'. Each PDF has an answer key on page 2.
All 21 Number Worksheets 0 to 20, One by One
Here is a closer look at every page in this collection: what it practices, which grade it fits and a tip for each one.
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1. Number 0 Worksheet
A free colorful number 0 worksheet: color the big 0, trace it with start and finish dots, count the dots in a ten frame, count the apples, color 0 ladybugs and fill in the numbers before and after 0. Includes an answer key. Little ones can do most of it with crayons, and a grown-up can read the short questions aloud. Count the pictures twice: once by pointing, once by coloring a dot on each one.
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2. Number 1 Worksheet
A free colorful number 1 worksheet: color the big 1, trace it with start and finish dots, count the dots in a ten frame, count the stars, color 1 flower and fill in the numbers before and after 1. Includes an answer key. It is made for pre-K and preschool, roughly ages 4 to 5, with big pictures and one number per page. Use real objects like coins or pasta to build the number before writing it.
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3. Number 2 Worksheet
A free colorful number 2 worksheet: color the big 2, trace it with start and finish dots, count the dots in a ten frame, count the balloons, color 2 teddy bears and fill in the numbers before and after 2. Includes an answer key. Little ones can do most of it with crayons, and a grown-up can read the short questions aloud. Say the number out loud each time you trace it.
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4. Number 3 Worksheet
A free colorful number 3 worksheet: color the big 3, trace it with start and finish dots, count the dots in a ten frame, count the fish, color 3 hearts and fill in the numbers before and after 3. Includes an answer key. It is made for pre-K and preschool, roughly ages 4 to 5, with big pictures and one number per page. Trace the big number with a finger first, then color it in your favorite color.
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5. Number 4 Worksheet
A free colorful number 4 worksheet: color the big 4, trace it with start and finish dots, count the dots in a ten frame, count the ladybugs, color 4 cupcakes and fill in the numbers before and after 4. Includes an answer key. Little ones can do most of it with crayons, and a grown-up can read the short questions aloud. Count the pictures twice: once by pointing, once by coloring a dot on each one.
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6. Number 5 Worksheet
A free colorful number 5 worksheet: color the big 5, trace it with start and finish dots, count the dots in a ten frame, count the flowers, color 5 apples and fill in the numbers before and after 5. Includes an answer key. It is made for pre-K and preschool, roughly ages 4 to 5, with big pictures and one number per page. Use real objects like coins or pasta to build the number before writing it.
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7. Number 6 Worksheet
A free colorful number 6 worksheet: color the big 6, trace it with start and finish dots, count the dots in a ten frame, count the teddy bears, color 6 stars and fill in the numbers before and after 6. Includes an answer key. Little ones can do most of it with crayons, and a grown-up can read the short questions aloud. Say the number out loud each time you trace it.
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8. Number 7 Worksheet
A free colorful number 7 worksheet: color the big 7, trace it with start and finish dots, count the dots in a ten frame, count the hearts, color 7 balloons and fill in the numbers before and after 7. Includes an answer key. It is made for pre-K and preschool, roughly ages 4 to 5, with big pictures and one number per page. Trace the big number with a finger first, then color it in your favorite color.
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9. Number 8 Worksheet
A free colorful number 8 worksheet: color the big 8, trace it with start and finish dots, count the dots in a ten frame, count the cupcakes, color 8 fish and fill in the numbers before and after 8. Includes an answer key. Little ones can do most of it with crayons, and a grown-up can read the short questions aloud. Count the pictures twice: once by pointing, once by coloring a dot on each one.
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10. Number 9 Worksheet
A free colorful number 9 worksheet: color the big 9, trace it with start and finish dots, count the dots in a ten frame, count the apples, color 9 ladybugs and fill in the numbers before and after 9. Includes an answer key. It is made for pre-K and preschool, roughly ages 4 to 5, with big pictures and one number per page. Use real objects like coins or pasta to build the number before writing it.
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11. Number 10 Worksheet
A free colorful number 10 worksheet: color the big 10, trace it with start and finish dots, count the dots in a ten frame, count the stars, color 10 flowers and fill in the numbers before and after 10. Includes an answer key. It is made for pre-K and preschool, roughly ages 4 to 5, with big pictures and one number per page. Use real objects like coins or pasta to build the number before writing it.
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12. Number 11 Worksheet
A free colorful number 11 worksheet: color the big 11, trace it with start and finish dots, count the dots in a ten frame, count the balloons, color 11 teddy bears and fill in the numbers before and after 11. Includes an answer key. It suits ages 4 to 6, and little ones can count the pictures with a finger. Say the number out loud each time you trace it.
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13. Number 12 Worksheet
A free colorful number 12 worksheet: color the big 12, trace it with start and finish dots, count the dots in a ten frame, count the fish, color 12 hearts and fill in the numbers before and after 12. Includes an answer key. Big pictures and only a few tasks per page make it a gentle start for kindergartners. Trace the big number with a finger first, then color it in your favorite color.
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14. Number 13 Worksheet
A free colorful number 13 worksheet: color the big 13, trace it with start and finish dots, count the dots in a ten frame, count the ladybugs, color 13 cupcakes and fill in the numbers before and after 13. Includes an answer key. It suits ages 4 to 6, and little ones can count the pictures with a finger. Count the pictures twice: once by pointing, once by coloring a dot on each one.
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15. Number 14 Worksheet
A free colorful number 14 worksheet: color the big 14, trace it with start and finish dots, count the dots in a ten frame, count the flowers, color 14 apples and fill in the numbers before and after 14. Includes an answer key. Big pictures and only a few tasks per page make it a gentle start for kindergartners. Use real objects like coins or pasta to build the number before writing it.
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16. Number 15 Worksheet
A free colorful number 15 worksheet: color the big 15, trace it with start and finish dots, count the dots in a ten frame, count the teddy bears, color 15 stars and fill in the numbers before and after 15. Includes an answer key. It suits ages 4 to 6, and little ones can count the pictures with a finger. Say the number out loud each time you trace it.
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17. Number 16 Worksheet
A free colorful number 16 worksheet: color the big 16, trace it with start and finish dots, count the dots in a ten frame, count the hearts, color 16 balloons and fill in the numbers before and after 16. Includes an answer key. Big pictures and only a few tasks per page make it a gentle start for kindergartners. Trace the big number with a finger first, then color it in your favorite color.
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18. Number 17 Worksheet
A free colorful number 17 worksheet: color the big 17, trace it with start and finish dots, count the dots in a ten frame, count the cupcakes, color 17 fish and fill in the numbers before and after 17. Includes an answer key. It suits ages 4 to 6, and little ones can count the pictures with a finger. Count the pictures twice: once by pointing, once by coloring a dot on each one.
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19. Number 18 Worksheet
A free colorful number 18 worksheet: color the big 18, trace it with start and finish dots, count the dots in a ten frame, count the apples, color 18 ladybugs and fill in the numbers before and after 18. Includes an answer key. Big pictures and only a few tasks per page make it a gentle start for kindergartners. Use real objects like coins or pasta to build the number before writing it.
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20. Number 19 Worksheet
A free colorful number 19 worksheet: color the big 19, trace it with start and finish dots, count the dots in a ten frame, count the stars, color 19 flowers and fill in the numbers before and after 19. Includes an answer key. It suits ages 4 to 6, and little ones can count the pictures with a finger. Say the number out loud each time you trace it.
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21. Number 20 Worksheet
A free colorful number 20 worksheet: color the big 20, trace it with start and finish dots, count the dots in a ten frame, count the balloons, color 20 teddy bears and fill in the numbers before and after 20. Includes an answer key. It suits ages 4 to 6, and little ones can count the pictures with a finger. Say the number out loud each time you trace it.
Tips for number worksheets 0 to 20
- Do one number a day and say it out loud together before starting.
- Have kids trace with a finger first, then with a crayon, then with a pencil.
- Point at each picture while counting so no picture is counted twice.
- For 11 to 20, show that the full ten frame is always 10: 14 is 10 and 4 more.
Fun math facts
- Zero as a number of its own was first written down in India around 1,500 years ago.
- The digits we use (0 to 9) are called Hindu-Arabic numerals; they reached Europe through Arabic math books.
- Ten frames became popular in US classrooms because kids recognize 5 and 10 at a glance, without counting.
Fun ways to use your printables
- Go on a number hunt: find the day's number on clocks, signs and food packages.
- Fill an egg carton with the day's number of buttons or pasta pieces.
- Make a number book: staple the colored pages from 0 to 20 together.
How to print
Click Download PDF and print at 100% on US Letter or A4 paper. Page 1 is the worksheet and page 2 is the answer key, so choose “page 1” in the print dialog if you only want the practice page. Every worksheet is free for home, homeschool and classroom use, so print as many copies as you need.
Frequently asked questions
What age are number worksheets for?
Numbers 0 to 10 work well from about age 4 (pre-K), and 11 to 20 from age 5 or 6 (kindergarten). Go at your child's pace: one number a day is plenty.
Do I need a color printer?
Color looks best, but the pages print fine in black and white: the pictures stay clear and the tracing digits print in light gray.
What is a ten frame?
A grid of 2 rows of 5 boxes. Kids see at a glance how far a number is from 5 and from 10, which builds number sense for adding later.
Why do the digits have green and red dots?
Green shows where to start writing and which way to go; red shows where the number ends. Starting at the right place is how kids learn to write numbers neatly.
Is zero included?
Yes. The zero page has an empty ten frame, an empty plate to count and a 'color 0' trick question kids love.