πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 3 = ?
Answer: ______________
216 − 9 = ?
Answer: ______________
318 − 14 = ?
Answer: ______________
416 − 15 = ?
Answer: ______________
512 − 12 = ?
Answer: ______________
6Get to ten first: 12 − 6 = 12 − 2 − ?
Answer: ______________
7Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
8Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
916 − 12 = ?
Answer: ______________
10Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
1119 − 16 = ?
Answer: ______________
1214 − 9 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 17
- 2. 7
- 3. 4
- 4. 1
- 5. 0
- 6. 4
- 7. 2
- 8. 1
- 9. 4
- 10. 7
- 11. 3
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20