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 − 8 = 16 − 6 − ?
Answer: ______________
2Get to ten first: 12 − 5 = 12 − 2 − ?
Answer: ______________
320 − 12 = ?
Answer: ______________
417 − 16 = ?
Answer: ______________
515 − 3 = ?
Answer: ______________
6Get to ten first: 14 − 9 = 14 − 4 − ?
Answer: ______________
717 − 17 = ?
Answer: ______________
8Get to ten first: 13 − 5 = 13 − 3 − ?
Answer: ______________
9Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
1019 − 2 = ?
Answer: ______________
1120 − 5 = ?
Answer: ______________
1218 − 15 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 3
- 3. 8
- 4. 1
- 5. 12
- 6. 5
- 7. 0
- 8. 2
- 9. 1
- 10. 17
- 11. 15
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20