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: ____________
12 + 8 + 7 = ?
Answer: ______________
27 + 7 + 3 = 10 + ?
Answer: ______________
34 + 3 = 3 + ?
Answer: ______________
42 + 3 + 8 = 5 + ?
Answer: ______________
58 + 2 + 2 = ?
Answer: ______________
64 + 8 + 2 = ?
Answer: ______________
79 + 6 = 6 + ?
Answer: ______________
84 + 6 + 7 = ?
Answer: ______________
99 + 4 + 1 = 13 + ?
Answer: ______________
108 + 9 + 2 = 10 + ?
Answer: ______________
117 + 4 + 3 = 10 + ?
Answer: ______________
125 + 5 + 9 = ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 17
- 2. 7
- 3. 4
- 4. 8
- 5. 12
- 6. 14
- 7. 9
- 8. 17
- 9. 1
- 10. 9
- 11. 4
- 12. 19
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties