πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
118 − 2 = ?
Answer: ______________
2Get to ten first: 13 − 5 = 13 − 3 − ?
Answer: ______________
317 − 1 = ?
Answer: ______________
416 − 15 = ?
Answer: ______________
5Get to ten first: 13 − 7 = 13 − 3 − ?
Answer: ______________
615 − 4 = ?
Answer: ______________
7Get to ten first: 15 − 8 = 15 − 5 − ?
Answer: ______________
8Get to ten first: 11 − 9 = 11 − 1 − ?
Answer: ______________
918 − 8 = ?
Answer: ______________
10Get to ten first: 14 − 9 = 14 − 4 − ?
Answer: ______________
1113 − 7 = ?
Answer: ______________
1220 − 9 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 16
- 2. 2
- 3. 16
- 4. 1
- 5. 4
- 6. 11
- 7. 3
- 8. 8
- 9. 10
- 10. 5
- 11. 6
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20