πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 4 = ?
Answer: ______________
2Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
311 − 3 = ?
Answer: ______________
412 − 9 = ?
Answer: ______________
5Get to ten first: 11 − 2 = 11 − 1 − ?
Answer: ______________
6Get to ten first: 16 − 9 = 16 − 6 − ?
Answer: ______________
7Get to ten first: 13 − 8 = 13 − 3 − ?
Answer: ______________
819 − 6 = ?
Answer: ______________
913 − 12 = ?
Answer: ______________
1016 − 7 = ?
Answer: ______________
1117 − 5 = ?
Answer: ______________
1220 − 10 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 11
- 2. 1
- 3. 8
- 4. 3
- 5. 1
- 6. 3
- 7. 5
- 8. 13
- 9. 1
- 10. 9
- 11. 12
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20