Let's solve each of the decimal addition problems step by step. We'll align the decimal points and add the numbers carefully.
---
1.
```
0.74
+ 4.15
------
```
Align decimals:
```
0.74
+ 4.15
------
4.89
```
✔ Answer: 4.89
---
2.
```
32.58
+ 90.92
-------
```
```
32.58
+ 90.92
-------
123.50
```
✔ Answer: 123.50
---
3.
```
99.8
+ 67.2
-----
```
Write as:
```
99.80
+ 67.20
-------
167.00
```
✔ Answer: 167.00
---
4.
```
835.77
+ 977.89
--------
```
```
835.77
+ 977.89
--------
1813.66
```
✔ Answer: 1813.66
---
5.
```
680.53
+ 100.16
--------
```
```
680.53
+ 100.16
--------
780.69
```
✔ Answer: 780.69
---
6.
```
1.8
+ 695.9
-------
```
Write as:
```
1.80
+ 695.90
--------
697.70
```
✔ Answer: 697.70
---
7.
```
47.757
+ 8.009
-------
```
```
47.757
+ 8.009
-------
55.766
```
✔ Answer: 55.766
---
8.
```
62.92
+ 64.73
-------
```
```
62.92
+ 64.73
-------
127.65
```
✔ Answer: 127.65
---
9.
```
81.29
+ 10.99
-------
```
```
81.29
+ 10.99
-------
92.28
```
✔ Answer: 92.28
---
10.
```
170.001
+ 22.167
---------
```
```
170.001
+ 22.167
---------
192.168
```
✔ Answer: 192.168
---
11.
```
96.234
+134.673
--------
```
```
96.234
+134.673
--------
230.907
```
✔ Answer: 230.907
---
12.
```
551.260
+ 720.952
----------
```
```
551.260
+ 720.952
----------
1272.212
```
✔ Answer: 1272.212
---
13.
```
43.01
+ 75.86
-------
```
```
43.01
+ 75.86
-------
118.87
```
✔ Answer: 118.87
---
14.
```
2.127
+ 2.981
-------
```
```
2.127
+ 2.981
-------
5.108
```
✔ Answer: 5.108
---
15.
```
0.0015
+ 1.0090
--------
```
Align decimals:
```
0.0015
+ 1.0090
--------
1.0105
```
✔ Answer: 1.0105
---
✔ Final Answers:
| Problem | Answer |
|--------|------------|
| 1 | 4.89 |
| 2 | 123.50 |
| 3 | 167.00 |
| 4 | 1813.66 |
| 5 | 780.69 |
| 6 | 697.70 |
| 7 | 55.766 |
| 8 | 127.65 |
| 9 | 92.28 |
| 10 | 192.168 |
| 11 | 230.907 |
| 12 | 1272.212 |
| 13 | 118.87 |
| 14 | 5.108 |
| 15 | 1.0105 |
---
💡
Tips for Adding Decimals:
- Always line up the decimal points.
- Add zeros to make numbers have the same number of decimal places (if needed).
- Add normally, then place the decimal point in the answer directly below the others.
Let me know if you'd like this formatted as a printable worksheet or need explanations for any specific problem!
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting decimals worksheet 5th grade.
