The task involves adding and subtracting whole numbers and decimals. Below, I will solve each problem step by step.
---
1. \( 26.5 + 30 \)
- Align the decimal points:
```
26.5
+ 30.0
------
56.5
```
-
Result: \( 56.5 \)
---
2. \( 38.257 + 26 \)
- Align the decimal points:
```
38.257
+ 26.000
--------
64.257
```
-
Result: \( 64.257 \)
---
3. \( 21 - 14.57 \)
- Align the decimal points:
```
21.00
- 14.57
-------
6.43
```
-
Result: \( 6.43 \)
---
4. \( 56 + 30.5 \)
- Align the decimal points:
```
56.0
+ 30.5
------
86.5
```
-
Result: \( 86.5 \)
---
5. \( 58 + 17.497 \)
- Align the decimal points:
```
58.000
+ 17.497
--------
75.497
```
-
Result: \( 75.497 \)
---
6. \( 25 - 16.419 \)
- Align the decimal points:
```
25.000
- 16.419
--------
8.581
```
-
Result: \( 8.581 \)
---
7. \( 10 + 80.5 \)
- Align the decimal points:
```
10.0
+ 80.5
------
90.5
```
-
Result: \( 90.5 \)
---
8. \( 44 - 18.86 \)
- Align the decimal points:
```
44.00
- 18.86
-------
25.14
```
-
Result: \( 25.14 \)
---
9. \( 66 - 47.055 \)
- Align the decimal points:
```
66.000
- 47.055
--------
18.945
```
-
Result: \( 18.945 \)
---
10. \( 35 + 19.446 \)
- Align the decimal points:
```
35.000
+ 19.446
--------
54.446
```
-
Result: \( 54.446 \)
---
11. \( 24 - 14.51 \)
- Align the decimal points:
```
24.00
- 14.51
-------
9.49
```
-
Result: \( 9.49 \)
---
12. \( 69 - 49.662 \)
- Align the decimal points:
```
69.000
- 49.662
--------
19.338
```
-
Result: \( 19.338 \)
---
Final Answers:
\[
\boxed{
\begin{array}{ccc}
56.5 & 64.257 & 6.43 \\
86.5 & 75.497 & 8.581 \\
90.5 & 25.14 & 18.945 \\
54.446 & 9.49 & 19.338 \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting whole numbers and decimals worksheet.
