πagarwalmath · 1st grade · Common Core 1.OA.B.3
🔄 Turn-around and make-ten
Use properties (3 + 8 = 8 + 3; make a ten first)
Name: ______________________Date: ____________
13 + 6 + 7 = 10 + ?
Answer: ______________
23 + 7 + 3 = ?
Answer: ______________
31 + 3 + 7 = ?
Answer: ______________
49 + 8 = 8 + ?
Answer: ______________
56 + 7 + 4 = 10 + ?
Answer: ______________
66 + 8 + 4 = ?
Answer: ______________
79 + 4 = 4 + ?
Answer: ______________
84 + 3 + 6 = ?
Answer: ______________
97 + 9 = 9 + ?
Answer: ______________
105 + 8 + 5 = ?
Answer: ______________
119 + 1 + 7 = ?
Answer: ______________
127 + 6 + 3 = ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 6
- 2. 13
- 3. 11
- 4. 9
- 5. 7
- 6. 18
- 7. 9
- 8. 13
- 9. 7
- 10. 18
- 11. 17
- 12. 16
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties