πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
116 − 2 = ?
Answer: ______________
2Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
3Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
417 − 14 = ?
Answer: ______________
5Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
617 − 15 = ?
Answer: ______________
717 − 1 = ?
Answer: ______________
820 − 2 = ?
Answer: ______________
916 − 5 = ?
Answer: ______________
1016 − 14 = ?
Answer: ______________
1112 − 9 = ?
Answer: ______________
1219 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 14
- 2. 7
- 3. 1
- 4. 3
- 5. 1
- 6. 2
- 7. 16
- 8. 18
- 9. 11
- 10. 2
- 11. 3
- 12. 18
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20