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 − 7 = 12 − 2 − ?
Answer: ______________
218 − 16 = ?
Answer: ______________
316 − 4 = ?
Answer: ______________
412 − 3 = ?
Answer: ______________
5Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
6Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
714 − 9 = ?
Answer: ______________
813 − 11 = ?
Answer: ______________
916 − 13 = ?
Answer: ______________
1018 − 1 = ?
Answer: ______________
11Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
1212 − 6 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 2
- 3. 12
- 4. 9
- 5. 2
- 6. 3
- 7. 5
- 8. 2
- 9. 3
- 10. 17
- 11. 4
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20