πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
114 − 12 = ?
Answer: ______________
2Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
316 − 8 = ?
Answer: ______________
416 − 1 = ?
Answer: ______________
5Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
615 − 9 = ?
Answer: ______________
714 − 7 = ?
Answer: ______________
813 − 7 = ?
Answer: ______________
9Get to ten first: 11 − 6 = 11 − 1 − ?
Answer: ______________
1012 − 11 = ?
Answer: ______________
1112 − 9 = ?
Answer: ______________
1215 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 1
- 3. 8
- 4. 15
- 5. 2
- 6. 6
- 7. 7
- 8. 6
- 9. 5
- 10. 1
- 11. 3
- 12. 14
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20