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.
```
485
+ 110
-----
```
- Ones: 5 + 0 =
5
- Tens: 8 + 1 =
9
- Hundreds: 4 + 1 =
5
→
595
---
2.
```
221
+ 470
-----
```
- Ones: 1 + 0 =
1
- Tens: 2 + 7 =
9
- Hundreds: 2 + 4 =
6
→
691
---
3.
```
314
+ 620
-----
```
- Ones: 4 + 0 =
4
- Tens: 1 + 2 =
3
- Hundreds: 3 + 6 =
9
→
934
---
4.
```
764
+ 133
-----
```
- Ones: 4 + 3 =
7
- Tens: 6 + 3 =
9
- Hundreds: 7 + 1 =
8
→
897
---
5.
```
353
+ 544
-----
```
- Ones: 3 + 4 =
7
- Tens: 5 + 4 =
9
- Hundreds: 3 + 5 =
8
→
897
---
6.
```
125
+ 260
-----
```
- Ones: 5 + 0 =
5
- Tens: 2 + 6 =
8
- Hundreds: 1 + 2 =
3
→
385
---
7.
```
110
+ 854
-----
```
- Ones: 0 + 4 =
4
- Tens: 1 + 5 =
6
- Hundreds: 1 + 8 =
9
→
964
---
8.
```
311
+ 266
-----
```
- Ones: 1 + 6 =
7
- Tens: 1 + 6 =
7
- Hundreds: 3 + 2 =
5
→
577
---
9.
```
180
+ 410
-----
```
- Ones: 0 + 0 =
0
- Tens: 8 + 1 =
9
- Hundreds: 1 + 4 =
5
→
590
---
10.
```
211
+ 432
-----
```
- Ones: 1 + 2 =
3
- Tens: 1 + 3 =
4
- Hundreds: 2 + 4 =
6
→
643
---
11.
```
650
+ 10
-----
```
- Ones: 0 + 0 =
0
- Tens: 5 + 1 =
6
- Hundreds: 6 + 0 =
6
→
660
---
12.
```
561
+ 132
-----
```
- Ones: 1 + 2 =
3
- Tens: 6 + 3 =
9
- Hundreds: 5 + 1 =
6
→
693
---
13.
```
140
+ 104
-----
```
- Ones: 0 + 4 =
4
- Tens: 4 + 0 =
4
- Hundreds: 1 + 1 =
2
→
244
---
14.
```
911
+ 12
-----
```
- Ones: 1 + 2 =
3
- Tens: 1 + 1 =
2
- Hundreds: 9 + 0 =
9
→
923
---
15.
```
230
+ 610
-----
```
- Ones: 0 + 0 =
0
- Tens: 3 + 1 =
4
- Hundreds: 2 + 6 =
8
→
840
---
✔ Final Answers:
1.
595
2.
691
3.
934
4.
897
5.
897
6.
385
7.
964
8.
577
9.
590
10.
643
11.
660
12.
693
13.
244
14.
923
15.
840
✔ All these additions are done
without regrouping, meaning no digit sum exceeds 9 in any column — perfect for this exercise!
Let me know if you'd like a printable version or visual explanation!
Parent Tip: Review the logic above to help your child master the concept of problem solving worksheet for 2nd grade.
