πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 6 = ?
Answer: ______________
211 − 9 = ?
Answer: ______________
315 − 9 = ?
Answer: ______________
4Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
513 − 1 = ?
Answer: ______________
6Start at 11 and count back 2. Where do you land? (11 − 2)
Answer: ______________
7Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
87 − 6 = ?
Answer: ______________
99 − 5 = ?
Answer: ______________
1020 − 4 = ?
Answer: ______________
115 − 1 = ?
Answer: ______________
1215 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 2
- 3. 6
- 4. 5
- 5. 12
- 6. 9
- 7. 7
- 8. 1
- 9. 4
- 10. 16
- 11. 4
- 12. 14
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20