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: ____________
17 + 5 + 3 = 5 + ?
Answer: ______________
25 + 2 + 5 = 2 + ?
Answer: ______________
35 + 6 + 5 = 6 + ?
Answer: ______________
47 + 4 = 4 + ?
Answer: ______________
58 + 6 = 6 + ?
Answer: ______________
62 + 9 = 9 + ?
Answer: ______________
74 + 5 + 6 = ?
Answer: ______________
87 + 3 = 3 + ?
Answer: ______________
99 + 6 + 1 = ?
Answer: ______________
109 + 9 = 9 + ?
Answer: ______________
118 + 3 + 2 = 3 + ?
Answer: ______________
123 + 6 + 7 = 6 + ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 10
- 2. 10
- 3. 10
- 4. 7
- 5. 8
- 6. 2
- 7. 15
- 8. 7
- 9. 16
- 10. 9
- 11. 10
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties