πagarwalmath · 1st grade · Common Core 1.OA.C.6
➖ Subtract within 20
Add and subtract within 20 (fluent within 10)
Name: ______________________Date: ____________
117 − 7 = ?
Answer: ______________
212 − 9 = ?
Answer: ______________
311 − 1 = ?
Answer: ______________
420 − 12 = ?
Answer: ______________
5Get to ten first: 15 − 6 = 15 − 5 − ?
Answer: ______________
6Get to ten first: 11 − 9 = 11 − 1 − ?
Answer: ______________
717 − 6 = ?
Answer: ______________
811 − 3 = ?
Answer: ______________
914 − 8 = ?
Answer: ______________
1013 − 11 = ?
Answer: ______________
1118 − 9 = ?
Answer: ______________
12Get to ten first: 17 − 8 = 17 − 7 − ?
Answer: ______________
Answer key: Subtract within 20
- 1. 10
- 2. 3
- 3. 10
- 4. 8
- 5. 1
- 6. 8
- 7. 11
- 8. 8
- 9. 6
- 10. 2
- 11. 9
- 12. 1
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/sub-within-20