πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
118 − 9 = ?
Answer: ______________
2Start at 18 and count back 2. Where do you land? (18 − 2)
Answer: ______________
3Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
4Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
520 − 9 = ?
Answer: ______________
67 − 7 = ?
Answer: ______________
78 − 3 = ?
Answer: ______________
88 − 4 = ?
Answer: ______________
910 − 2 = ?
Answer: ______________
1017 − 1 = ?
Answer: ______________
1120 − 4 = ?
Answer: ______________
1214 − 5 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 9
- 2. 16
- 3. 5
- 4. 9
- 5. 11
- 6. 0
- 7. 5
- 8. 4
- 9. 8
- 10. 16
- 11. 16
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20