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 + 2 + 1 = ?
Answer: ______________
28 + 4 + 2 = ?
Answer: ______________
38 + 4 = 4 + ?
Answer: ______________
46 + 5 = 5 + ?
Answer: ______________
57 + 1 + 3 = ?
Answer: ______________
63 + 7 + 8 = ?
Answer: ______________
72 + 1 + 9 = ?
Answer: ______________
81 + 9 + 9 = ?
Answer: ______________
99 + 5 = 5 + ?
Answer: ______________
102 + 9 + 1 = ?
Answer: ______________
117 + 1 + 9 = ?
Answer: ______________
129 + 9 = 9 + ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 11
- 2. 14
- 3. 8
- 4. 6
- 5. 11
- 6. 18
- 7. 12
- 8. 19
- 9. 9
- 10. 12
- 11. 17
- 12. 9
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties