πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 15 = ?
Answer: ______________
2Get to ten first: 13 − 6 = 13 − 3 − ?
Answer: ______________
319 − 15 = ?
Answer: ______________
416 − 12 = ?
Answer: ______________
516 − 10 = ?
Answer: ______________
617 − 14 = ?
Answer: ______________
720 − 9 = ?
Answer: ______________
8Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
920 − 10 = ?
Answer: ______________
1013 − 10 = ?
Answer: ______________
1112 − 9 = ?
Answer: ______________
1220 − 3 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 0
- 2. 3
- 3. 4
- 4. 4
- 5. 6
- 6. 3
- 7. 11
- 8. 1
- 9. 10
- 10. 3
- 11. 3
- 12. 17
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20