πagarwalmath · 2nd grade · Common Core 2.NBT.B.7
🧮 Add & subtract within 1000
Add and subtract within 1000
Name: ______________________Date: ____________
1Break apart 256 to add: 565 + 256 = 565 + 200 + 50 + ?
Answer: ______________
2Put the blocks together. 424 + 134 = ?
Answer: ______________
3Break apart 251 to add: 126 + 251 = 126 + 200 + 50 + ?
Answer: ______________
4Put the blocks together. 473 + 169 = ?
Answer: ______________
5Put the blocks together. 413 + 252 = ?
Answer: ______________
6375 − 231 = ?
Answer: ______________
7Break apart 370 to add: 329 + 370 = 329 + 300 + 70 + ?
Answer: ______________
8Break apart 213 to add: 378 + 213 = 378 + 200 + 10 + ?
Answer: ______________
9857 − 407 = ?
Answer: ______________
10257 − 124 = ?
Answer: ______________
11748 − 740 = ?
Answer: ______________
12528 − 514 = ?
Answer: ______________
Answer key: Add & subtract within 1000
- 1. 6
- 2. 558
- 3. 1
- 4. 642
- 5. 665
- 6. 144
- 7. 0
- 8. 3
- 9. 450
- 10. 133
- 11. 8
- 12. 14
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/add-within-1000