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: ____________
15 + 8 + 5 = 8 + ?
Answer: ______________
26 + 5 + 5 = ?
Answer: ______________
39 + 9 + 1 = ?
Answer: ______________
47 + 3 + 3 = 3 + ?
Answer: ______________
59 + 6 = 6 + ?
Answer: ______________
68 + 1 + 2 = ?
Answer: ______________
78 + 2 + 4 = ?
Answer: ______________
83 + 7 = 7 + ?
Answer: ______________
98 + 9 = 9 + ?
Answer: ______________
102 + 7 = 7 + ?
Answer: ______________
117 + 7 + 3 = 7 + ?
Answer: ______________
123 + 2 + 7 = ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 10
- 2. 16
- 3. 19
- 4. 10
- 5. 9
- 6. 11
- 7. 14
- 8. 3
- 9. 8
- 10. 2
- 11. 10
- 12. 12
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties