πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
112 − 3 = ?
Answer: ______________
28 − 6 = ?
Answer: ______________
37 − 2 = ?
Answer: ______________
4Start at 9 and count back 2. Where do you land? (9 − 2)
Answer: ______________
510 − 5 = ?
Answer: ______________
617 − 5 = ?
Answer: ______________
78 − 1 = ?
Answer: ______________
87 − 3 = ?
Answer: ______________
910 − 2 = ?
Answer: ______________
1014 − 5 = ?
Answer: ______________
1111 − 5 = ?
Answer: ______________
1215 − 6 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 9
- 2. 2
- 3. 5
- 4. 7
- 5. 5
- 6. 12
- 7. 7
- 8. 4
- 9. 8
- 10. 9
- 11. 6
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20