πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
18 − 3 = ?
Answer: ______________
2Start at 12 and count back 2. Where do you land? (12 − 2)
Answer: ______________
312 − 4 = ?
Answer: ______________
4Start at 10 and count back 2. Where do you land? (10 − 2)
Answer: ______________
514 − 8 = ?
Answer: ______________
616 − 5 = ?
Answer: ______________
77 − 2 = ?
Answer: ______________
87 − 5 = ?
Answer: ______________
912 − 9 = ?
Answer: ______________
1014 − 9 = ?
Answer: ______________
1116 − 8 = ?
Answer: ______________
129 − 4 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 5
- 2. 10
- 3. 8
- 4. 8
- 5. 6
- 6. 11
- 7. 5
- 8. 2
- 9. 3
- 10. 5
- 11. 8
- 12. 5
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20