Adventures with the Number 20

Let's celebrate the terrific and talented number Twenty! It's a huge milestone—two full groups of ten! It marks the beginning of the 'twenties' family of numbers. Let's learn all about this amazing number!

Getting to Know the Number 20:

20, spelled twenty, represents a group of twenty objects. 20 has 2 tens and 0 ones. 2 × 10 + 0 = 20.

- The Whizki Learning Team

Seeing the Number 20 in Our World

The number twenty represents two complete sets. Representing it in different ways helps your child see this important grouping. Here are a few ways we can show what 'twenty' really means.

The Numeral

This is how we write the number twenty. A '2' in the tens place, and a '0' in the ones place.

The Word

twenty [ˈtwɛnti]

This is how we read the number. The word 'twenty' helps us talk about this important, foundational group.

On a Ten-Frame

Twenty dots require two ten-frames, and both are completely full! This is the most satisfying and clear visual of what 'twenty' means.

As Groups of 10

You can show twenty as two neat and tidy groups of ten objects. This is a powerful introduction to the idea of place value.

Practice the Number 20 at Home (No Screens Needed!)

The best learning happens through play. Here are a few simple, screen-free ideas to continue your number 20 adventure together and celebrate this big number.

The '20 Questions' Game

~1
This is a classic game of logic and deduction that is perfect for this number. One person thinks of an object, animal, or person. The other players have up to twenty 'yes' or 'no' questions to guess what it is. This game is a brilliant workout for the brain. It teaches children how to ask good, strategic questions, how to use logic to eliminate possibilities, and the importance of listening carefully to the answers. It’s a truly engaging, screen-free game that fosters communication and critical thinking.

Two-by-Ten Lego Tower

~2
This is a great hands-on activity for understanding that twenty is made of two groups of ten. You'll need at least twenty LEGO bricks. The challenge is to build two separate, identical towers that are each exactly ten bricks tall. Then, you can place them side-by-side to see the full group of twenty. This provides a very strong and concrete visual representation of '2 x 10 = 20'. It’s a playful, hands-on way to introduce the concepts of multiplication and place value.

20-Second Tidy-Up Bursts

~3
This is a practical life skills activity that connects the number twenty to a quick, focused effort. Instead of a long, daunting clean-up, try doing '20-second tidy-up bursts'. Set a timer and challenge your child (and yourself!) to put away as many things as possible in twenty seconds. You can do several bursts throughout the day. This game teaches the power of focused effort and that even a small amount of time can make a big difference. It turns a chore into a fun, high-energy game while practicing counting to twenty.

Practice Number 20

Download free printable worksheets to master this number!

Browse more activities
Number Ninja Adventures: Add and Count to 20! Number Ninja Adventures: Add and Count to 20!
Practice addition in 6 questions. Find sums, explain a method, and check answers with adult support.
Count to 20 Adventure with Whizki Learning Count to 20 Adventure with Whizki Learning
Practice quantity comparison in 16 questions. Compare quantities, explain a method, and check answers with adult support.
Find the Missing Numbers Worksheet Find the Missing Numbers Worksheet
Kids often pause when a counting pattern has holes, even when they can count out loud. This Whizki Learning printable gives your kindergartener four short trails and simple equations to complete together.
Numbers 1 to 5 Counting Objects Worksheet for Preschool Numbers 1 to 5 Counting Objects Worksheet for Preschool
Count illustrated groups, including 1 apple picture, and write each total. Practice touching every picture once and checking the whole quantity with adult support.

Plan a little more practice

Pick a page from the counting and number sense worksheets. Free PDFs need a free account to download. You can also explore number explanations. For teaching goals, read kindergarten counting and number sense goals.

For a ready-made set of related activities:

Addition and Subtraction Pack

Addition and subtraction become easier to discuss when children can connect symbols with quantities. This pack combines picture arithmetic, number equations, short story problems, and making-ten activities. It also includes counting and comparison pages that can support a child who needs more practice before working with equations. The previews show several distinct formats. Some pages ask for a sum or difference, some compare two quantities, and picture-value puzzles ask children to infer a hidden value from clues. Choose a page that practices the operation you are working on, and introduce the picture-value puzzles after familiar equations feel manageable. Choose a task based on its number range and reasoning demand. Let a child model an equation with counters, explain what a story says happened, or check a comparison by counting. Picture-value puzzles can involve larger totals and several reasoning steps, so they may be a later choice even when their illustrations look playful. Return to Early Math Essentials when quantities and numerals need more work. For arithmetic involving measurement units, explore the Measurement Workshop set . Work through one example together, then ask your child to explain a method on the next instead of relying only on a written answer.

Picture Equation Puzzles: Find the Hidden ValuesMonster Numbers: Addition PracticeCount, Match, and Complete Numbers 1–10
Early Math Essentials

A child can count familiar objects before written numbers begin to make sense. This collection gives adults several ways to connect quantities with numerals: counting picture groups, choosing or writing a number, tracing numerals, and completing number sequences. Start with a page that matches what your child can already count comfortably. The published collection also includes comparing groups, addition within ten, number names, missing numbers, and introductory place value. These formats ask for different skills. The pages are choices for practice rather than a lesson sequence in which every worksheet is easier than the next. Model counting by touching each object once and saying that the last number tells how many there are. When a page introduces addition, use counters to show two groups joining. For comparison, check each quantity before choosing a symbol. Save tens-and-ones work for a child ready to connect grouped objects with a two-digit numeral. The number reference library can help explain a particular numeral. When your child is ready for more arithmetic, explore the Addition and Subtraction Pack . A few careful examples are enough for one sitting; use the rest when another short practice opportunity comes along.

Count, Match, and Complete Numbers 1–10Picture Addition and Missing Addends Within 10Picture Addition and Missing Addends Within 10
Halloween Learning Activities Pack

Halloween themes can give a familiar practice task a reason to come back to the table. This collection uses pumpkins, candy, and friendly seasonal pictures in counting, word-search, pattern, and handwriting activities. Choose the format your child is ready to use rather than expecting the theme to make every task equally easy. The counting pages ask children to attend to objects and quantities. Word searches use a printed bank of Halloween vocabulary, pattern pages ask what repeats or comes next, and handwriting pages provide words to trace and write. Check the actual preview for the words, number range, or pattern rule on that page. An adult can read the directions and name unfamiliar seasonal words. For a word search, model matching the first letter and checking the remaining letters in order. For a pattern, say the repeating unit aloud. A child who is ready to count objects may still need substantial help reading a longer word such as costume. Use Early Math Essentials for more counting practice beyond the theme. The Spelling and Word Building Pack provides other word activities. Print a single page for a short seasonal session, or choose several suitable activities from the published collection.

Count the Pumpkins: Six Picture GroupsHalloween Word Search: Pumpkins and Nighttime WordsPumpkin and Candy Patterns: Find What Comes Next

Save the worksheet on its page, or add an activity to your learning planner for another day. Compare Free, Plus, and Pro if you need more saved materials or planning tools.

A Parent's Guide to Arabic Numerals (0-20)

You're doing a great job exploring the world of numbers! Each number has its own unique story.
Use this guide as your adventure map to jump to another number you're curious about, or to see how they all fit together in one big, amazing family.

0zero

[ˈzɪəroʊ]
The Number zero

3three

[θriː]
The Number three

4four

[fɔːr]
The Number four

5five

[faɪv]
The Number five

6six

[sɪks]
The Number six

7seven

[ˈsɛvən]
The Number seven

8eight

[eɪt]
The Number eight

9nine

[naɪn]
The Number nine

10ten

[tɛn]
The Number ten

11eleven

[ɪˈlɛvən]
The Number eleven

12twelve

[twɛlv]
The Number twelve

13thirteen

[θɜːrˈtiːn]
The Number thirteen

14fourteen

[fɔːrˈtiːn]
The Number fourteen

15fifteen

[fɪfˈtiːn]
The Number fifteen

16sixteen

[sɪksˈtiːn]
The Number sixteen

17seventeen

[ˌsɛvənˈtiːn]
The Number seventeen

18eighteen

[eɪˈtiːn]
The Number eighteen

19nineteen

[naɪnˈtiːn]
The Number nineteen

20twenty

[ˈtwɛnti]
The Number twenty

Frequently asked questions

FAQ

Everything you need to know.

NUMBER MEANING

What does the number 20 mean?

20, spelled twenty, represents a group of twenty objects.

How do you spell 20?

You spell 20 as twenty.

What comes before and after 20?

19 comes before 20, and 21 comes after it.

How can we understand 20 as tens and ones?

20 has 2 tens and 0 ones. 2 × 10 + 0 = 20.

VISUAL MODELS

How do you show 20 with objects?

Count 20 blocks, touching each block once as you say its number. Put each group of ten together, then count any remaining ones.

NUMBER FACTS

Is 20 even or odd?

20 is even because it can be divided into two equal whole-number groups.

Is 20 a square number?

No. No whole number multiplied by itself equals 20. For example, 4 is a square number because 2 × 2 = 4.

PRACTICE IDEAS

How can children practice 20?

Read 20, trace or write it, and match it to a group of 20 objects. Choose one short activity and stop when your child needs a break.

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25 printable math activities

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Early Math Essentials brings counting, number recognition, tracing, and first sums together in 25 ready-to-print pages.