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 + 6 + 4 = ?
Answer: ______________
26 + 3 = 3 + ?
Answer: ______________
34 + 3 = 3 + ?
Answer: ______________
43 + 8 + 7 = 11 + ?
Answer: ______________
52 + 5 + 8 = 7 + ?
Answer: ______________
62 + 2 + 8 = 10 + ?
Answer: ______________
72 + 1 + 8 = ?
Answer: ______________
85 + 9 = 9 + ?
Answer: ______________
99 + 7 = 7 + ?
Answer: ______________
105 + 8 = 8 + ?
Answer: ______________
115 + 2 + 5 = 10 + ?
Answer: ______________
128 + 9 + 2 = 17 + ?
Answer: ______________
Answer key: Turn-around and make-ten
- 1. 19
- 2. 6
- 3. 4
- 4. 7
- 5. 8
- 6. 2
- 7. 11
- 8. 5
- 9. 9
- 10. 5
- 11. 2
- 12. 2
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/1st-grade/add-properties