πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
117 − 13 = ?
Answer: ______________
2Get to ten first: 11 − 2 = 11 − 1 − ?
Answer: ______________
314 − 8 = ?
Answer: ______________
418 − 16 = ?
Answer: ______________
516 − 2 = ?
Answer: ______________
613 − 3 = ?
Answer: ______________
711 − 1 = ?
Answer: ______________
820 − 5 = ?
Answer: ______________
9Get to ten first: 13 − 5 = 13 − 3 − ?
Answer: ______________
10Get to ten first: 17 − 9 = 17 − 7 − ?
Answer: ______________
1116 − 13 = ?
Answer: ______________
1220 − 14 = ?
Answer: ______________
Answer key: Subtract within 20
- 1. 4
- 2. 1
- 3. 6
- 4. 2
- 5. 14
- 6. 10
- 7. 10
- 8. 15
- 9. 2
- 10. 2
- 11. 3
- 12. 6
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20