πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
114 − 3 = ?
Answer: ______________
2Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
317 − 14 = ?
Answer: ______________
411 − 4 = ?
Answer: ______________
515 − 7 = ?
Answer: ______________
6Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
7Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
816 − 5 = ?
Answer: ______________
9Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
1019 − 2 = ?
Answer: ______________
1120 − 2 = ?
Answer: ______________
1216 − 13 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 11
- 2. 4
- 3. 3
- 4. 7
- 5. 8
- 6. 1
- 7. 1
- 8. 11
- 9. 3
- 10. 17
- 11. 18
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20