πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
18 − 2 = ?
Answer: ______________
2Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
316 − 7 = ?
Answer: ______________
417 − 7 = ?
Answer: ______________
5Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
6Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
75 − 3 = ?
Answer: ______________
8Start at 16 and count back 2. Where do you land? (16 − 2)
Answer: ______________
912 − 4 = ?
Answer: ______________
1017 − 2 = ?
Answer: ______________
1114 − 9 = ?
Answer: ______________
125 − 2 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 6
- 2. 7
- 3. 9
- 4. 10
- 5. 5
- 6. 7
- 7. 2
- 8. 14
- 9. 8
- 10. 15
- 11. 5
- 12. 3
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20