Number Bonds Within 20
Work with all number bonds up to 20
What You'll Learn
- Find missing parts for any bond within 20
- Think flexibly about part-whole relationships
- Connect to subtraction as finding a missing part
📖Any Number, Any Bond
Now you can break apart any number up to 20! 17 can be 10+7, or 8+9, or 11+6. There are many ways to make each number.
💡
When you need to find a missing part, think about what you know. If the whole is 16 and one part is 9, think: "What do I add to 9 to get 16?"
Practice Worksheets
Number Bonds Within 20 (Set A)
Find missing parts in bonds to 20
10 problemsStart
Number Bonds Within 20 (Set B)
More practice with bonds to 20
10 problemsStart
Number Bonds Within 20 (Set C)
Additional bonds to 20 practice
10 problemsStart
Number Bonds Within 20 (Set D)
Keep practicing bonds to 20
10 problemsStart
Number Bonds Within 20 (Set E)
Master bonds within 20
10 problemsStart