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: ____________
11 + 1 + 9 = ?
Answer: ______________
24 + 4 + 6 = ?
Answer: ______________
37 + 1 + 9 = ?
Answer: ______________
43 + 1 + 7 = ?
Answer: ______________
56 + 9 + 4 = ?
Answer: ______________
68 + 4 = 4 + ?
Answer: ______________
72 + 7 + 8 = 7 + ?
Answer: ______________
83 + 5 + 7 = 5 + ?
Answer: ______________
99 + 5 + 5 = ?
Answer: ______________
109 + 9 = 9 + ?
Answer: ______________
115 + 5 + 9 = ?
Answer: ______________
124 + 8 + 2 = ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 11
- 2. 14
- 3. 17
- 4. 11
- 5. 19
- 6. 8
- 7. 10
- 8. 10
- 9. 19
- 10. 9
- 11. 19
- 12. 14
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties