N2d - Applying the four operations to decimals - BossMaths.com - Free Printable

Problem Description:

The task is to solve a series of addition problems involving decimal numbers. The problems are listed in two columns (a) through (l). We will solve each problem step by step.

---

Solution:

#### Column 1:
1. a) \( 5.7 + 671 \)
- Align the decimal points:
```
5.7
+671.0
------
676.7
```
- Answer: \( 676.7 \)

2. b) \( 4.1 + 6.3 \)
- Align the decimal points:
```
4.1
+ 6.3
------
10.4
```
- Answer: \( 10.4 \)

3. c) \( 7.6 + 8.9 \)
- Align the decimal points:
```
7.6
+ 8.9
------
16.5
```
- Answer: \( 16.5 \)

4. d) \( 7.2 + 4.8 \)
- Align the decimal points:
```
7.2
+ 4.8
------
12.0
```
- Answer: \( 12.0 \)

5. e) \( 17 + 14.7 \)
- Align the decimal points:
```
17.0
+ 14.7
------
31.7
```
- Answer: \( 31.7 \)

6. f) \( 16.2 + 9 \)
- Align the decimal points:
```
16.2
+ 9.0
------
25.2
```
- Answer: \( 25.2 \)

---

#### Column 2:
7. g) \( 7.51 + 0.2 \)
- Align the decimal points:
```
7.51
+ 0.20
------
7.71
```
- Answer: \( 7.71 \)

8. h) \( 9.7 + 8.51 \)
- Align the decimal points:
```
9.70
+ 8.51
------
18.21
```
- Answer: \( 18.21 \)

9. i) \( 10.21 + 8.04 \)
- Align the decimal points:
```
10.21
+ 8.04
------
18.25
```
- Answer: \( 18.25 \)

10. j) \( 21.47 + 47.36 \)
- Align the decimal points:
```
21.47
+ 47.36
------
68.83
```
- Answer: \( 68.83 \)

11. k) \( 85.52 + 25.49 \)
- Align the decimal points:
```
85.52
+ 25.49
------
111.01
```
- Answer: \( 111.01 \)

12. l) \( 43.79 + 39.5 \)
- Align the decimal points:
```
43.79
+ 39.50
------
83.29
```
- Answer: \( 83.29 \)

---

Final Answers:

\[
\boxed{
\begin{array}{ll}
\text{a)} & 676.7 \\
\text{b)} & 10.4 \\
\text{c)} & 16.5 \\
\text{d)} & 12.0 \\
\text{e)} & 31.7 \\
\text{f)} & 25.2 \\
\text{g)} & 7.71 \\
\text{h)} & 18.21 \\
\text{i)} & 18.25 \\
\text{j)} & 68.83 \\
\text{k)} & 111.01 \\
\text{l)} & 83.29 \\
\end{array}
}
\]