πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
15 − 5 = ?
Answer: ______________
215 − 7 = ?
Answer: ______________
314 − 9 = ?
Answer: ______________
4Start at 15 and count back 3. Where do you land? (15 − 3)
Answer: ______________
57 − 6 = ?
Answer: ______________
616 − 4 = ?
Answer: ______________
717 − 3 = ?
Answer: ______________
8Start at 8 and count back 2. Where do you land? (8 − 2)
Answer: ______________
913 − 9 = ?
Answer: ______________
107 − 1 = ?
Answer: ______________
116 − 5 = ?
Answer: ______________
12Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
Answer key: Subtract within 20
- 1. 0
- 2. 8
- 3. 5
- 4. 12
- 5. 1
- 6. 12
- 7. 14
- 8. 6
- 9. 4
- 10. 6
- 11. 1
- 12. 7
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20