πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
111 − 4 = ?
Answer: ______________
219 − 17 = ?
Answer: ______________
318 − 8 = ?
Answer: ______________
4Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
5Get to ten first: 14 − 7 = 14 − 4 − ?
Answer: ______________
616 − 12 = ?
Answer: ______________
720 − 5 = ?
Answer: ______________
820 − 13 = ?
Answer: ______________
916 − 5 = ?
Answer: ______________
10Get to ten first: 13 − 9 = 13 − 3 − ?
Answer: ______________
1119 − 1 = ?
Answer: ______________
12Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 7
- 2. 2
- 3. 10
- 4. 1
- 5. 3
- 6. 4
- 7. 15
- 8. 7
- 9. 11
- 10. 6
- 11. 18
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20