πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 9 = ?
Answer: ______________
2Get to ten first: 13 − 9 = 13 − 3 − ?
Answer: ______________
320 − 9 = ?
Answer: ______________
415 − 4 = ?
Answer: ______________
5Get to ten first: 13 − 7 = 13 − 3 − ?
Answer: ______________
6Get to ten first: 14 − 9 = 14 − 4 − ?
Answer: ______________
717 − 5 = ?
Answer: ______________
812 − 12 = ?
Answer: ______________
9Get to ten first: 13 − 4 = 13 − 3 − ?
Answer: ______________
1019 − 3 = ?
Answer: ______________
1118 − 17 = ?
Answer: ______________
1212 − 1 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 6
- 3. 11
- 4. 11
- 5. 4
- 6. 5
- 7. 12
- 8. 0
- 9. 1
- 10. 16
- 11. 1
- 12. 11
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20