Number Bonds Game
Number Bonds is a free math game that helps children learn the pairs of numbers that make 5, 10, 20 and 100, using ten frames and part-part-whole diagrams.
Number Bonds
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- Ages
- 4–8
- School years
- Pre-K–3rd Grade
- Skills
- Number bonds to 5 and 10, Number bonds to 20, Pairs of multiples of 5 and 10 that make 100
- Time
- 2–5 minutes a round
- Cost
- Free, no sign-up
- Updated
How to play Number Bonds
- Choose a target: Make 5, Make 10, Make 20 or Make 100.
- Pick whether to tap an answer or type it.
- Find the missing number. For 5 and 10, count the empty spaces in the frame.
- Answer 10 questions and try to beat your best score!
What your child learns
- Number bonds to 5 and 10
- Number bonds to 20
- Pairs of multiples of 5 and 10 that make 100
- Missing-number addition (7 + ? = 10)
- The part-part-whole model
About Number Bonds
Number bonds are pairs of numbers that join to make a whole, like 7 and 3 making 10. Knowing them by heart is one of the most useful early math skills: it makes adding, subtracting and bridging through 10 much quicker, and it shows how addition and subtraction are linked.
Children in Pre-K can start with Make 5 using a five frame. Make 10 with a ten frame suits Kindergarten, Make 20 suits 1st Grade, and Make 100 with multiples of 10 and then 5 suits Grades 2–3.
Which level should my child play?
| School year | Suggested level |
|---|---|
| Pre-K | Make 5 |
| Kindergarten | Make 10 |
| 1st Grade | Make 20 |
| 2nd Grade | Make 100 |
| 3rd Grade | Make 100 + Typing |
Move up a level after getting three stars two or three times in a row.
🏆 Leaderboard
Full leaderboard →Play a round to get on the board! Create a free account to save your scores.
🖨️ Printable worksheets
Practice away from the screen too: free worksheets with answer keys that match this game.
🎯 Practice one skill
Jump straight to a level, with tricks, examples and a printable worksheet for each skill.
📝 Use it for test prep
Number Bonds builds skills for these tests.
Frequently asked questions
What is a number bond?
A number bond is a pair of numbers that add together to make a given number. For example, 6 and 4 are a number bond to 10 because 6 + 4 = 10.
What is a ten frame?
A ten frame is a box of 10 spaces in two rows of five. Filling some spaces with counters makes it easy to see how many more are needed to make 10.
Why are number bonds to 10 important?
They are the building blocks of mental math. Children who know them can quickly add numbers like 8 + 5 by making 10 first (8 + 2 + 3), and can use them to find bonds to 20 and 100.
More games you’ll love
All math games →Add numbers within 10, 20, 100 or 1,000.
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Practice any times table from 2× to 12×.
Division facts and remainders.
Look, cover and spell words from memory.
Flip cards and find all the matching pairs.
Help your child shine in math
Practice at home is a great start. Success Tutoring offers personalized tutoring to build skills and confidence.