Let's solve each of these decimal addition and subtraction problems step by step. We'll align the decimals properly and perform the operations carefully.
---
1) 45.6 + 33.75
```
45.60
+ 33.75
-------
79.35
```
Answer: 79.35
---
2) 43 + 5.89
```
43.00
+ 5.89
-------
48.89
```
Answer: 48.89
---
3) 53.74 - 23.182
Align decimals:
```
53.740
- 23.182
--------
30.558
```
Answer: 30.558
---
4) 24 + 9.623
```
24.000
+ 9.623
--------
33.623
```
Answer: 33.623
---
5) 38 - 30.7
```
38.0
- 30.7
------
7.3
```
Answer: 7.3
---
6) 89 + 59.6
```
89.0
+ 59.6
------
148.6
```
Answer: 148.6
---
7) 55 - 53.132
```
55.000
- 53.132
--------
1.868
```
Answer: 1.868
---
8) 18 + 5.6
```
18.0
+ 5.6
------
23.6
```
Answer: 23.6
---
9) 69.94 + 63.525
```
69.940
+ 63.525
--------
133.465
```
Answer: 133.465
---
10) 92 + 19.25
```
92.00
+ 19.25
-------
111.25
```
Answer: 111.25
---
11) 50.55 - 1.294
```
50.550
- 1.294
--------
49.256
```
Answer: 49.256
---
12) 6 + 3.2
```
6.0
+ 3.2
-----
9.2
```
Answer: 9.2
---
13) 90 - 82.11
```
90.00
- 82.11
-------
7.89
```
Answer: 7.89
---
14) 9 - 7.8
```
9.0
- 7.8
-----
1.2
```
Answer: 1.2
---
15) 44.6 - 11.463
```
44.600
- 11.463
--------
33.137
```
Answer: 33.137
---
✔ Final Answers:
1) 79.35
2) 48.89
3) 30.558
4) 33.623
5) 7.3
6) 148.6
7) 1.868
8) 23.6
9) 133.465
10) 111.25
11) 49.256
12) 9.2
13) 7.89
14) 1.2
15) 33.137
---
🔍 Explanation:
When adding or subtracting decimals:
-
Align the decimal points vertically.
- Add zeros to make the numbers have the same number of decimal places (if needed).
- Perform the operation as with whole numbers.
- Place the decimal point in the result directly below the others.
This ensures accuracy, especially when dealing with different decimal lengths.
Let me know if you'd like a visual version or printable answers!
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting decimals worksheet 6th grade.
