Let’s solve each problem one by one. We’ll add or subtract the decimals carefully, lining up the decimal points.
---
1. $4.36 + $2.59 = ?
Line them up:
```
4.36
+ 2.59
------
6.95
```
✔ Answer:
$6.95
---
2. 9.8 - 6.4 = ?
```
9.8
- 6.4
-----
3.4
```
✔ Answer:
3.4
---
3. 127.34 - 68.5 = ?
Write 68.5 as 68.50 to line up decimals:
```
127.34
- 68.50
--------
58.84
```
✔ Answer:
58.84
---
4. 3.926 - 1.581 = ?
```
3.926
- 1.581
-------
2.345
```
✔ Answer:
2.345
---
5. 12.9 + 7.38 = ?
Write 12.9 as 12.90:
```
12.90
+ 7.38
------
20.28
```
✔ Answer:
20.28
---
6. 4.739 + 1.821 = ?
```
4.739
+ 1.821
-------
6.560
```
✔ Answer:
6.560
---
7. 11.24 + 6.1 + 9.306 = ?
First, write all with same decimal places:
11.240
+6.100
+9.306
= ?
Add step by step:
11.240 + 6.100 = 17.340
17.340 + 9.306 = 26.646
✔ Answer:
26.646
---
8. 15 + 1.51 = ?
Write 15 as 15.00:
```
15.00
+ 1.51
------
16.51
```
✔ Answer:
16.51
---
9. 127.5 - 4.98 = ?
Write 127.5 as 127.50:
```
127.50
- 4.98
--------
122.52
```
✔ Answer:
122.52
---
10. $9.74 - $6.58 = ?
```
9.74
- 6.58
------
3.16
```
✔ Answer:
$3.16
---
Final Answer:
$4.36 + $2.59 =
$6.95
9.8 - 6.4 =
3.4
127.34 - 68.5 =
58.84
3.926 - 1.581 =
2.345
12.9 + 7.38 =
20.28
4.739 + 1.821 =
6.560
11.24 + 6.1 + 9.306 =
26.646
15 + 1.51 =
16.51
127.5 - 4.98 =
122.52
$9.74 - $6.58 =
$3.16
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting decimals worksheet.
