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: ____________
18 + 8 + 2 = ?
Answer: ______________
23 + 5 + 7 = ?
Answer: ______________
39 + 4 + 1 = 4 + ?
Answer: ______________
42 + 3 = 3 + ?
Answer: ______________
59 + 6 = 6 + ?
Answer: ______________
65 + 5 + 5 = ?
Answer: ______________
71 + 9 + 7 = ?
Answer: ______________
81 + 9 + 3 = ?
Answer: ______________
99 + 2 + 1 = 2 + ?
Answer: ______________
107 + 2 = 2 + ?
Answer: ______________
116 + 9 = 9 + ?
Answer: ______________
123 + 2 + 7 = 2 + ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 18
- 2. 15
- 3. 10
- 4. 2
- 5. 9
- 6. 15
- 7. 17
- 8. 13
- 9. 10
- 10. 7
- 11. 6
- 12. 10
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties