πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
115 − 1 = ?
Answer: ______________
2Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
3Get to ten first: 11 − 3 = 11 − 1 − ?
Answer: ______________
414 − 13 = ?
Answer: ______________
513 − 4 = ?
Answer: ______________
6Get to ten first: 16 − 7 = 16 − 6 − ?
Answer: ______________
7Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
817 − 9 = ?
Answer: ______________
920 − 1 = ?
Answer: ______________
1012 − 4 = ?
Answer: ______________
1111 − 5 = ?
Answer: ______________
1220 − 14 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 14
- 2. 4
- 3. 2
- 4. 1
- 5. 9
- 6. 1
- 7. 1
- 8. 8
- 9. 19
- 10. 8
- 11. 6
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20