Let's solve each problem step by step. The worksheet involves
adding and subtracting decimals. We'll align the decimal points and perform the operations carefully.
---
1) 71.9 - 39.49
Align decimals:
```
71.90
- 39.49
-------
32.41
```
✔ Answer: 32.41
---
2) 86.8 + 7.811
Align decimals:
```
86.800
+ 7.811
--------
94.611
```
✔ Answer: 94.611
---
3) 62.1 + 39.56
Align decimals:
```
62.10
+ 39.56
-------
101.66
```
✔ Answer: 101.66
---
4) 23.07 + 6.129
Align decimals:
```
23.070
+ 6.129
--------
29.199
```
✔ Answer: 29.199
---
5) 89.7 - 0.8
Align decimals:
```
89.7
- 0.8
------
88.9
```
✔ Answer: 88.9
---
6) 59.302 - 51.1
Align decimals:
```
59.302
- 51.100
--------
8.202
```
✔ Answer: 8.202
---
7) 69.5 - 46.1
```
69.5
- 46.1
------
23.4
```
✔ Answer: 23.4
---
8) 21.82 + 14.71
```
21.82
+ 14.71
-------
36.53
```
✔ Answer: 36.53
---
9) 13.142 + 5.136
```
13.142
+ 5.136
--------
18.278
```
✔ Answer: 18.278
---
10) 37.785 + 21.07
Align decimals:
```
37.785
+ 21.070
--------
58.855
```
✔ Answer: 58.855
---
11) 23.906 + 22.640
```
23.906
+ 22.640
--------
46.546
```
✔ Answer: 46.546
---
12) 45.75 - 7.8
```
45.75
- 7.80
-------
37.95
```
✔ Answer: 37.95
---
✔ Final Answers:
1.
32.41
2.
94.611
3.
101.66
4.
29.199
5.
88.9
6.
8.202
7.
23.4
8.
36.53
9.
18.278
10.
58.855
11.
46.546
12.
37.95
---
You can now fill these in the "Answers" column on the right side of the worksheet. Let me know if you'd like a printable version or explanation for any specific step!
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting positive and negative decimals worksheet.
