πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Get to ten first: 16 − 9 = 16 − 6 − ?
Answer: ______________
2Get to ten first: 12 − 5 = 12 − 2 − ?
Answer: ______________
3Get to ten first: 13 − 6 = 13 − 3 − ?
Answer: ______________
415 − 5 = ?
Answer: ______________
516 − 10 = ?
Answer: ______________
611 − 5 = ?
Answer: ______________
712 − 2 = ?
Answer: ______________
811 − 4 = ?
Answer: ______________
919 − 7 = ?
Answer: ______________
1017 − 12 = ?
Answer: ______________
1112 − 6 = ?
Answer: ______________
1214 − 10 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 3
- 3. 3
- 4. 10
- 5. 6
- 6. 6
- 7. 10
- 8. 7
- 9. 12
- 10. 5
- 11. 6
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20