Let's solve each addition problem step by step. We'll add the numbers vertically, carrying over when necessary.
---
1. 4524 + 6647 + 8997
```
4524
6647
+ 8997
-------
```
Start from the rightmost digit:
- Units: 4 + 7 + 7 = 18 → write 8, carry 1
- Tens: 2 + 4 + 9 + 1 (carry) = 16 → write 6, carry 1
- Hundreds: 5 + 6 + 9 + 1 = 21 → write 1, carry 2
- Thousands: 4 + 6 + 8 + 2 = 20
So, total =
20168
---
2. 4533 + 5690 + 2678
```
4533
5690
+ 2678
-------
```
- Units: 3 + 0 + 8 = 11 → write 1, carry 1
- Tens: 3 + 9 + 7 + 1 = 20 → write 0, carry 2
- Hundreds: 5 + 6 + 6 + 2 = 19 → write 9, carry 1
- Thousands: 4 + 5 + 2 + 1 = 12
Total =
12901
---
3. 3490 + 7788 + 6795
```
3490
7788
+ 6795
-------
```
- Units: 0 + 8 + 5 = 13 → write 3, carry 1
- Tens: 9 + 8 + 9 + 1 = 27 → write 7, carry 2
- Hundreds: 4 + 7 + 7 + 2 = 20 → write 0, carry 2
- Thousands: 3 + 7 + 6 + 2 = 18
Total =
18073
---
4. 4564 + 2334 + 3455
```
4564
2334
+ 3455
-------
```
- Units: 4 + 4 + 5 = 13 → write 3, carry 1
- Tens: 6 + 3 + 5 + 1 = 15 → write 5, carry 1
- Hundreds: 5 + 3 + 4 + 1 = 13 → write 3, carry 1
- Thousands: 4 + 2 + 3 + 1 = 10
Total =
10353
---
5. 5633 + 8900 + 5677
```
5633
8900
+ 5677
-------
```
- Units: 3 + 0 + 7 = 10 → write 0, carry 1
- Tens: 3 + 0 + 7 + 1 = 11 → write 1, carry 1
- Hundreds: 6 + 9 + 6 + 1 = 22 → write 2, carry 2
- Thousands: 5 + 8 + 5 + 2 = 20
Total =
20210
---
6. 6577 + 7788 + 9900
```
6577
7788
+ 9900
-------
```
- Units: 7 + 8 + 0 = 15 → write 5, carry 1
- Tens: 7 + 8 + 0 + 1 = 16 → write 6, carry 1
- Hundreds: 5 + 7 + 9 + 1 = 22 → write 2, carry 2
- Thousands: 6 + 7 + 9 + 2 = 24
Total =
24265
---
7. 1123 + 3445 + 5432
```
1123
3445
+ 5432
-------
```
- Units: 3 + 5 + 2 = 10 → write 0, carry 1
- Tens: 2 + 4 + 3 + 1 = 10 → write 0, carry 1
- Hundreds: 1 + 4 + 4 + 1 = 10 → write 0, carry 1
- Thousands: 1 + 3 + 5 + 1 = 10
Total =
10000
---
8. 5643 + 7864 + 3488
```
5643
7864
+ 3488
-------
```
- Units: 3 + 4 + 8 = 15 → write 5, carry 1
- Tens: 4 + 6 + 8 + 1 = 19 → write 9, carry 1
- Hundreds: 6 + 8 + 4 + 1 = 19 → write 9, carry 1
- Thousands: 5 + 7 + 3 + 1 = 16
Total =
16995
---
9. 6544 + 3556 + 2754
```
6544
3556
+ 2754
-------
```
- Units: 4 + 6 + 4 = 14 → write 4, carry 1
- Tens: 4 + 5 + 5 + 1 = 15 → write 5, carry 1
- Hundreds: 5 + 5 + 7 + 1 = 18 → write 8, carry 1
- Thousands: 6 + 3 + 2 + 1 = 12
Total =
12854
---
✔ Final Answers:
1.
20168
2.
12901
3.
18073
4.
10353
5.
20210
6.
24265
7.
10000
8.
16995
9.
12854
Let me know if you'd like this in a printable format or with steps shown!
Parent Tip: Review the logic above to help your child master the concept of 3rd grade addition worksheets.
