πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
19 − 7 = ?
Answer: ______________
2Start at 9 and count back 3. Where do you land? (9 − 3)
Answer: ______________
39 − 5 = ?
Answer: ______________
4Start at 10 and count back 2. Where do you land? (10 − 2)
Answer: ______________
519 − 1 = ?
Answer: ______________
6Start at 14 and count back 3. Where do you land? (14 − 3)
Answer: ______________
711 − 8 = ?
Answer: ______________
815 − 8 = ?
Answer: ______________
920 − 8 = ?
Answer: ______________
1017 − 9 = ?
Answer: ______________
1114 − 5 = ?
Answer: ______________
12Start at 14 and count back 2. Where do you land? (14 − 2)
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 6
- 3. 4
- 4. 8
- 5. 18
- 6. 11
- 7. 3
- 8. 7
- 9. 12
- 10. 8
- 11. 9
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20