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 + 2 + 8 = 4 + ?
Answer: ______________
21 + 9 + 1 = ?
Answer: ______________
36 + 2 + 4 = 8 + ?
Answer: ______________
42 + 4 + 6 = ?
Answer: ______________
56 + 8 = 8 + ?
Answer: ______________
66 + 4 = 4 + ?
Answer: ______________
79 + 7 + 3 = ?
Answer: ______________
83 + 9 = 9 + ?
Answer: ______________
94 + 6 + 1 = ?
Answer: ______________
108 + 2 = 2 + ?
Answer: ______________
111 + 8 + 2 = ?
Answer: ______________
124 + 2 = 2 + ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 8
- 2. 11
- 3. 4
- 4. 12
- 5. 6
- 6. 6
- 7. 19
- 8. 3
- 9. 11
- 10. 8
- 11. 11
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties