Subtraction Within 20
Master subtraction with minuends up to 20
What You'll Learn
- Subtract any single-digit number from numbers up to 20
- Use multiple strategies (counting back, making 10, think addition)
- Build fluency with all basic subtraction facts
📖All the Way to 20
You can now subtract from numbers as high as 20! This includes 16, 17, 18, 19, and 20.
📖Think Addition
For 17 - 8, think: 8 + ? = 17. If you know 8 + 9 = 17, then 17 - 8 = 9!
📖Choose Your Strategy
You now know many ways to subtract: counting back, making 10, thinking addition. Use whichever works best for you!
💡
If you are stuck, try a different strategy. There is always more than one way to solve a problem!
Practice Worksheets
Subtraction Within 20 (Set A)
Practice all subtraction facts within 20
12 problemsStart
Subtraction Within 20 (Set B)
More practice subtracting within 20
12 problemsStart
Subtraction Within 20 (Set C)
Additional drill within 20
12 problemsStart
Subtraction Within 20 (Set D)
Keep practicing subtraction within 20
12 problemsStart
Subtraction Within 20 (Set E)
More practice within 20
12 problemsStart
Subtraction Within 20 (Set F)
Master subtraction within 20
12 problemsStart