Vertical Addition Practice Worksheet for Elementary Math Students

Let’s solve each vertical addition problem step by step.

We’ll add the numbers column by column, starting from the right (ones place), then move to the left (tens place).

---

Problem 1:
```
33
+ 11
----
```
3 + 1 = 4 (ones)
3 + 1 = 4 (tens)
→ 44

---

Problem 2:
```
26
+ 28
----
```
6 + 8 = 14 → write down 4, carry over 1
2 + 2 + 1 (carry) = 5
→ 54

---

Problem 3:
```
57
+ 14
----
```
7 + 4 = 11 → write down 1, carry over 1
5 + 1 + 1 (carry) = 7
→ 71

---

Problem 4:
```
17
+ 17
----
```
7 + 7 = 14 → write down 4, carry over 1
1 + 1 + 1 (carry) = 3
→ 34

---

Problem 5:
```
44
+ 16
----
```
4 + 6 = 10 → write down 0, carry over 1
4 + 1 + 1 (carry) = 6
→ 60

---

Problem 6:
```
33
+ 49
----
```
3 + 9 = 12 → write down 2, carry over 1
3 + 4 + 1 (carry) = 8
→ 82

---

Problem 7:
```
42
+ 19
----
```
2 + 9 = 11 → write down 1, carry over 1
4 + 1 + 1 (carry) = 6
→ 61

---

Problem 8:
```
33
+ 66
----
```
3 + 6 = 9 (ones)
3 + 6 = 9 (tens)
→ 99

---

Problem 9:
```
16
+ 84
----
```
6 + 4 = 10 → write down 0, carry over 1
1 + 8 + 1 (carry) = 10 → write down 0, carry over 1 → but since it’s tens place, we write 10
→ 100

Wait — let’s check again:

Actually:
16 + 84
6 + 4 = 10 → 0, carry 1
1 + 8 = 9, plus 1 = 10 → so 100
Yes → 100

---

Problem 10:
```
43
+ 44
----
```
3 + 4 = 7
4 + 4 = 8
→ 87

---

Problem 11:
```
29
+ 33
----
```
9 + 3 = 12 → write 2, carry 1
2 + 3 + 1 = 6
→ 62

---

Problem 12:
```
19
+ 35
----
```
9 + 5 = 14 → write 4, carry 1
1 + 3 + 1 = 5
→ 54

---

Problem 13:
```
25
+ 75
----
```
5 + 5 = 10 → write 0, carry 1
2 + 7 + 1 = 10 → write 0, carry 1 → but since it’s tens, we get 100? Wait:

25 + 75
5 + 5 = 10 → 0, carry 1
2 + 7 = 9, plus 1 = 10 → so 100
→ 100

Wait — 25 + 75 is indeed 100. Correct.

---

Problem 14:
```
39
+ 12
----
```
9 + 2 = 11 → write 1, carry 1
3 + 1 + 1 = 5
→ 51

---

Problem 15:
```
72
+ 18
----
```
2 + 8 = 10 → write 0, carry 1
7 + 1 + 1 = 9
→ 90

---

Now, let’s list all answers in order:

1. 44
2. 54
3. 71
4. 34
5. 60
6. 82
7. 61
8. 99
9. 100
10. 87
11. 62
12. 54
13. 100
14. 51
15. 90

Final Answer:
44, 54, 71, 34, 60, 82, 61, 99, 100, 87, 62, 54, 100, 51, 90