πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
1Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
213 − 8 = ?
Answer: ______________
3Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
416 − 3 = ?
Answer: ______________
518 − 9 = ?
Answer: ______________
615 − 6 = ?
Answer: ______________
711 − 9 = ?
Answer: ______________
816 − 2 = ?
Answer: ______________
919 − 8 = ?
Answer: ______________
105 − 2 = ?
Answer: ______________
1112 − 3 = ?
Answer: ______________
128 − 3 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 9
- 2. 5
- 3. 7
- 4. 13
- 5. 9
- 6. 9
- 7. 2
- 8. 14
- 9. 11
- 10. 3
- 11. 9
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20