πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
120 − 2 = ?
Answer: ______________
28 − 3 = ?
Answer: ______________
316 − 4 = ?
Answer: ______________
419 − 1 = ?
Answer: ______________
5Start at 8 and count back 3. Where do you land? (8 − 3)
Answer: ______________
6Start at 10 and count back 3. Where do you land? (10 − 3)
Answer: ______________
7Start at 16 and count back 3. Where do you land? (16 − 3)
Answer: ______________
816 − 2 = ?
Answer: ______________
910 − 7 = ?
Answer: ______________
105 − 5 = ?
Answer: ______________
1119 − 9 = ?
Answer: ______________
1214 − 6 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 18
- 2. 5
- 3. 12
- 4. 18
- 5. 5
- 6. 7
- 7. 13
- 8. 14
- 9. 3
- 10. 0
- 11. 10
- 12. 8
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20