Let's solve each of the addition problems
without regrouping, which means we’ll add the numbers column by column (ones, tens, hundreds) and make sure that in each column, the sum is less than 10 so no carrying over is needed.
We'll go through each problem one by one:
---
1.
```
187
+ 510
-----
```
- Ones: 7 + 0 =
7
- Tens: 8 + 1 =
9
- Hundreds: 1 + 5 =
6
→
697
---
2.
```
222
+ 66
-----
```
- Ones: 2 + 6 =
8
- Tens: 2 + 6 =
8
- Hundreds: 2 + 0 =
2
→
288
---
3.
```
690
+ 208
-----
```
- Ones: 0 + 8 =
8
- Tens: 9 + 0 =
9
- Hundreds: 6 + 2 =
8
→
898
---
4.
```
421
+ 116
-----
```
- Ones: 1 + 6 =
7
- Tens: 2 + 1 =
3
- Hundreds: 4 + 1 =
5
→
537
---
5.
```
326
+ 642
-----
```
- Ones: 6 + 2 =
8
- Tens: 2 + 4 =
6
- Hundreds: 3 + 6 =
9
→
968
---
6.
```
271
+ 401
-----
```
- Ones: 1 + 1 =
2
- Tens: 7 + 0 =
7
- Hundreds: 2 + 4 =
6
→
672
---
7.
```
343
+ 120
-----
```
- Ones: 3 + 0 =
3
- Tens: 4 + 2 =
6
- Hundreds: 3 + 1 =
4
→
463
---
8.
```
501
+ 123
-----
```
- Ones: 1 + 3 =
4
- Tens: 0 + 2 =
2
- Hundreds: 5 + 1 =
6
→
624
---
9.
```
205
+ 503
-----
```
- Ones: 5 + 3 =
8
- Tens: 0 + 0 =
0
- Hundreds: 2 + 5 =
7
→
708
---
10.
```
307
+ 511
-----
```
- Ones: 7 + 1 =
8
- Tens: 0 + 1 =
1
- Hundreds: 3 + 5 =
8
→
818
---
11.
```
111
+ 532
-----
```
- Ones: 1 + 2 =
3
- Tens: 1 + 3 =
4
- Hundreds: 1 + 5 =
6
→
643
---
12.
```
504
+ 415
-----
```
- Ones: 4 + 5 =
9
- Tens: 0 + 1 =
1
- Hundreds: 5 + 4 =
9
→
919
---
13.
```
640
+ 142
-----
```
- Ones: 0 + 2 =
2
- Tens: 4 + 4 =
8
- Hundreds: 6 + 1 =
7
→
782
---
14.
```
410
+ 536
-----
```
- Ones: 0 + 6 =
6
- Tens: 1 + 3 =
4
- Hundreds: 4 + 5 =
9
→
946
---
15.
```
213
+ 250
-----
```
- Ones: 3 + 0 =
3
- Tens: 1 + 5 =
6
- Hundreds: 2 + 2 =
4
→
463
---
✔ Final Answers:
1.
697
2.
288
3.
898
4.
537
5.
968
6.
672
7.
463
8.
624
9.
708
10.
818
11.
643
12.
919
13.
782
14.
946
15.
463
✔ All these additions are done
without regrouping, meaning no digit sum in any column exceeds 9 — perfect for this type of practice!
Let me know if you'd like a printable version or explanation with place value breakdowns!
Parent Tip: Review the logic above to help your child master the concept of 2nd grade addition practice sheets.
