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: 14 − 5 = 14 − 4 − ?
Answer: ______________
2Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
313 − 12 = ?
Answer: ______________
411 − 7 = ?
Answer: ______________
5Get to ten first: 15 − 9 = 15 − 5 − ?
Answer: ______________
6Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
7Get to ten first: 12 − 7 = 12 − 2 − ?
Answer: ______________
816 − 4 = ?
Answer: ______________
916 − 11 = ?
Answer: ______________
10Get to ten first: 12 − 9 = 12 − 2 − ?
Answer: ______________
1111 − 2 = ?
Answer: ______________
1219 − 15 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 1
- 2. 1
- 3. 1
- 4. 4
- 5. 4
- 6. 1
- 7. 5
- 8. 12
- 9. 5
- 10. 7
- 11. 9
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20