πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
110 − 7 = ?
Answer: ______________
29 − 2 = ?
Answer: ______________
315 − 5 = ?
Answer: ______________
48 − 7 = ?
Answer: ______________
510 − 1 = ?
Answer: ______________
6Start at 18 and count back 2. Where do you land? (18 − 2)
Answer: ______________
716 − 5 = ?
Answer: ______________
814 − 7 = ?
Answer: ______________
97 − 3 = ?
Answer: ______________
10Start at 17 and count back 2. Where do you land? (17 − 2)
Answer: ______________
1115 − 3 = ?
Answer: ______________
125 − 3 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 3
- 2. 7
- 3. 10
- 4. 1
- 5. 9
- 6. 16
- 7. 11
- 8. 7
- 9. 4
- 10. 15
- 11. 12
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20