Addition math worksheet with problems for practicing two-digit addition.

The image shows a worksheet titled "Addition," where the task is to add numbers to find each sum. Below, I will solve the problems step by step and explain the solution process.

---

Worksheet Content

The worksheet consists of several addition problems arranged in rows. Each row contains two numbers that need to be added together. The goal is to compute the sum for each pair of numbers.

---

Solving the Problems

#### First Row:
1. 4.2 + 1.3 = ?
- Align the decimal points:
```
4.2
+ 1.3
------
5.5
```
- Sum: 5.5

2. 8.4 + 0.7 = ?
- Align the decimal points:
```
8.4
+ 0.7
------
9.1
```
- Sum: 9.1

3. 1.8 + 0.6 = ?
- Align the decimal points:
```
1.8
+ 0.6
------
2.4
```
- Sum: 2.4

#### Second Row:
1. 1.5 + 0.9 = ?
- Align the decimal points:
```
1.5
+ 0.9
------
2.4
```
- Sum: 2.4

2. 6.8 + 2.1 = ?
- Align the decimal points:
```
6.8
+ 2.1
------
8.9
```
- Sum: 8.9

3. 3.3 + 2.8 = ?
- Align the decimal points:
```
3.3
+ 2.8
------
6.1
```
- Sum: 6.1

4. 3.2 + 4.3 = ?
- Align the decimal points:
```
3.2
+ 4.3
------
7.5
```
- Sum: 7.5

#### Third Row:
1. 5.4 + 1.2 = ?
- Align the decimal points:
```
5.4
+ 1.2
------
6.6
```
- Sum: 6.6

2. 2.7 + 2.1 = ?
- Align the decimal points:
```
2.7
+ 2.1
------
4.8
```
- Sum: 4.8

3. 3.5 + 5.2 = ?
- Align the decimal points:
```
3.5
+ 5.2
------
8.7
```
- Sum: 8.7

4. 1.1 + 1.1 = ?
- Align the decimal points:
```
1.1
+ 1.1
------
2.2
```
- Sum: 2.2

#### Fourth Row:
1. 7.2 + 3.3 = ?
- Align the decimal points:
```
7.2
+ 3.3
------
10.5
```
- Sum: 10.5

2. 1.5 + 5.3 = ?
- Align the decimal points:
```
1.5
+ 5.3
------
6.8
```
- Sum: 6.8

3. 1.0 + 3.3 = ?
- Align the decimal points:
```
1.0
+ 3.3
------
4.3
```
- Sum: 4.3

4. 8.6 + 3.1 = ?
- Align the decimal points:
```
8.6
+ 3.1
------
11.7
```
- Sum: 11.7

#### Fifth Row:
1. 1.3 + 3.2 = ?
- Align the decimal points:
```
1.3
+ 3.2
------
4.5
```
- Sum: 4.5

2. 3.6 + 7.2 = ?
- Align the decimal points:
```
3.6
+ 7.2
------
10.8
```
- Sum: 10.8

3. 2.0 + 1.3 = ?
- Align the decimal points:
```
2.0
+ 1.3
------
3.3
```
- Sum: 3.3

4. 6.4 + 2.3 = ?
- Align the decimal points:
```
6.4
+ 2.3
------
8.7
```
- Sum: 8.7

#### Sixth Row:
1. 2.1 + 3.5 = ?
- Align the decimal points:
```
2.1
+ 3.5
------
5.6
```
- Sum: 5.6

2. 4.7 + 2.1 = ?
- Align the decimal points:
```
4.7
+ 2.1
------
6.8
```
- Sum: 6.8

3. 1.9 + 2.3 = ?
- Align the decimal points:
```
1.9
+ 2.3
------
4.2
```
- Sum: 4.2

4. 1.6 + 2.0 = ?
- Align the decimal points:
```
1.6
+ 2.0
------
3.6
```
- Sum: 3.6

---

Final Answer

Here are all the sums computed:

1. First Row:
- 5.5, 9.1, 2.4

2. Second Row:
- 2.4, 8.9, 6.1, 7.5

3. Third Row:
- 6.6, 4.8, 8.7, 2.2

4. Fourth Row:
- 10.5, 6.8, 4.3, 11.7

5. Fifth Row:
- 4.5, 10.8, 3.3, 8.7

6. Sixth Row:
- 5.6, 6.8, 4.2, 3.6

---

Boxed Final Answer

$$
\boxed{
\begin{array}{cccc}
5.5 & 9.1 & 2.4 \\
2.4 & 8.9 & 6.1 & 7.5 \\
6.6 & 4.8 & 8.7 & 2.2 \\
10.5 & 6.8 & 4.3 & 11.7 \\
4.5 & 10.8 & 3.3 & 8.7 \\
5.6 & 6.8 & 4.2 & 3.6 \\
\end{array}
}
$$