πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Get to ten first: 12 − 5 = 12 − 2 − ?
Answer: ______________
212 − 9 = ?
Answer: ______________
318 − 2 = ?
Answer: ______________
413 − 1 = ?
Answer: ______________
520 − 8 = ?
Answer: ______________
617 − 14 = ?
Answer: ______________
7Get to ten first: 11 − 6 = 11 − 1 − ?
Answer: ______________
8Get to ten first: 12 − 6 = 12 − 2 − ?
Answer: ______________
917 − 1 = ?
Answer: ______________
1013 − 10 = ?
Answer: ______________
1111 − 5 = ?
Answer: ______________
1218 − 8 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 3
- 3. 16
- 4. 12
- 5. 12
- 6. 3
- 7. 5
- 8. 4
- 9. 16
- 10. 3
- 11. 6
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20