πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
114 − 2 = ?
Answer: ______________
212 − 5 = ?
Answer: ______________
315 − 14 = ?
Answer: ______________
4Get to ten first: 11 − 3 = 11 − 1 − ?
Answer: ______________
5Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
620 − 19 = ?
Answer: ______________
7Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
817 − 15 = ?
Answer: ______________
9Get to ten first: 14 − 5 = 14 − 4 − ?
Answer: ______________
10Get to ten first: 12 − 6 = 12 − 2 − ?
Answer: ______________
11Get to ten first: 16 − 9 = 16 − 6 − ?
Answer: ______________
1216 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 12
- 2. 7
- 3. 1
- 4. 2
- 5. 1
- 6. 1
- 7. 2
- 8. 2
- 9. 1
- 10. 4
- 11. 3
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20