πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
113 − 3 = ?
Answer: ______________
220 − 8 = ?
Answer: ______________
320 − 2 = ?
Answer: ______________
4Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
5Get to ten first: 15 − 7 = 15 − 5 − ?
Answer: ______________
617 − 15 = ?
Answer: ______________
713 − 7 = ?
Answer: ______________
819 − 8 = ?
Answer: ______________
917 − 9 = ?
Answer: ______________
1013 − 4 = ?
Answer: ______________
1116 − 16 = ?
Answer: ______________
12Get to ten first: 16 − 8 = 16 − 6 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 10
- 2. 12
- 3. 18
- 4. 2
- 5. 2
- 6. 2
- 7. 6
- 8. 11
- 9. 8
- 10. 9
- 11. 0
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20