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: ______________
220 − 10 = ?
Answer: ______________
318 − 13 = ?
Answer: ______________
416 − 2 = ?
Answer: ______________
517 − 5 = ?
Answer: ______________
614 − 9 = ?
Answer: ______________
720 − 17 = ?
Answer: ______________
8Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
9Get to ten first: 15 − 7 = 15 − 5 − ?
Answer: ______________
1011 − 2 = ?
Answer: ______________
1111 − 7 = ?
Answer: ______________
1218 − 17 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 10
- 3. 5
- 4. 14
- 5. 12
- 6. 5
- 7. 3
- 8. 7
- 9. 2
- 10. 9
- 11. 4
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20