Bonds of 20
Master all the ways to make 20
What You'll Learn
- Know all pairs that make 20 (1+19, 2+18, etc.)
- Use bonds of 20 for mental math
- See patterns in making 20
📖The Power of 20
Just like Making 10, Making 20 is very useful! 1+19=20, 2+18=20, 3+17=20, and so on. Notice the pattern: as one number goes up, the other goes down!
💡
To find what makes 20 with any number, first think about making 10, then add 10 more. For example: 7+3=10, so 7+13=20!
Practice Worksheets
Bonds of 20 (Set A)
Learn all the ways to make 20
10 problemsStart
Bonds of 20 (Set B)
Practice making 20 different ways
10 problemsStart
Bonds of 20 (Set C)
More bonds of 20 practice
10 problemsStart
Bonds of 20 (Set D)
Keep practicing bonds of 20
10 problemsStart
Bonds of 20 (Set E)
Master bonds of 20
10 problemsStart