πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 1 = ?
Answer: ______________
27 − 6 = ?
Answer: ______________
38 − 3 = ?
Answer: ______________
47 − 3 = ?
Answer: ______________
55 − 2 = ?
Answer: ______________
6Start at 16 and count back 2. Where do you land? (16 − 2)
Answer: ______________
7Start at 12 and count back 3. Where do you land? (12 − 3)
Answer: ______________
811 − 4 = ?
Answer: ______________
913 − 4 = ?
Answer: ______________
107 − 1 = ?
Answer: ______________
1120 − 7 = ?
Answer: ______________
12Start at 15 and count back 3. Where do you land? (15 − 3)
Answer: ______________
Answer key: Subtract within 20
- 1. 11
- 2. 1
- 3. 5
- 4. 4
- 5. 3
- 6. 14
- 7. 9
- 8. 7
- 9. 9
- 10. 6
- 11. 13
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20