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: ____________
19 + 7 + 3 = ?
Answer: ______________
29 + 2 + 1 = ?
Answer: ______________
39 + 7 = 7 + ?
Answer: ______________
47 + 3 + 9 = ?
Answer: ______________
51 + 9 + 1 = ?
Answer: ______________
65 + 5 + 5 = ?
Answer: ______________
73 + 4 = 4 + ?
Answer: ______________
82 + 5 = 5 + ?
Answer: ______________
96 + 4 = 4 + ?
Answer: ______________
104 + 7 = 7 + ?
Answer: ______________
118 + 7 = 7 + ?
Answer: ______________
129 + 5 + 5 = ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 19
- 2. 12
- 3. 9
- 4. 19
- 5. 11
- 6. 15
- 7. 3
- 8. 2
- 9. 6
- 10. 4
- 11. 8
- 12. 19
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties