πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
15 − 3 = ?
Answer: ______________
2Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
320 − 1 = ?
Answer: ______________
417 − 7 = ?
Answer: ______________
511 − 1 = ?
Answer: ______________
616 − 3 = ?
Answer: ______________
77 − 4 = ?
Answer: ______________
818 − 1 = ?
Answer: ______________
911 − 6 = ?
Answer: ______________
10Start at 15 and count back 2. Where do you land? (15 − 2)
Answer: ______________
1116 − 2 = ?
Answer: ______________
1210 − 6 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 2
- 2. 7
- 3. 19
- 4. 10
- 5. 10
- 6. 13
- 7. 3
- 8. 17
- 9. 5
- 10. 13
- 11. 14
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20