Sure! Let’s solve each of these decimal addition and subtraction problems step by step. The key is to
line up the decimal points and then add or subtract as you would with whole numbers, keeping the decimal point in the same column in your answer.
---
1) 4.32 + 12.16
```
4.32
+12.16
------
16.48
```
✔ Answer: 16.48
---
2) 12.16 - 3.14
```
12.16
- 3.14
------
9.02
```
✔ Answer: 9.02
---
3) 46.30 - 03.67
*(Note: 03.67 is just 3.67)*
```
46.30
- 3.67
------
42.63
```
✔ Answer: 42.63
---
4) 2.1 + 21.83
*(Write 2.1 as 2.10 to align decimals)*
```
2.10
+21.83
------
23.93
```
✔ Answer: 23.93
---
5) 1.89 + 5.91
```
1.89
+ 5.91
------
7.80 (or simply 7.8)
```
✔ Answer: 7.8
---
6) 23.7 + 16.1
```
23.7
+16.1
------
39.8
```
✔ Answer: 39.8
---
7) 15.47 + 12.26
```
15.47
+12.26
------
27.73
```
✔ Answer: 27.73
---
8) 1.7 - 18.58
*(This will be negative since we’re subtracting a larger number from a smaller one.)*
We can think of it as: -(18.58 - 1.7)
```
18.58
- 1.70
------
16.88 → So answer is -16.88
```
✔ Answer: -16.88
---
9) 19.16 + 2.48
```
19.16
+ 2.48
------
21.64
```
✔ Answer: 21.64
---
10) 8.8 - 8.8
```
8.8
-8.8
-----
0.0 (or simply 0)
```
✔ Answer: 0
---
##
✔ Final Answers:
1)
16.48
2)
9.02
3)
42.63
4)
23.93
5)
7.8
6)
39.8
7)
27.73
8)
-16.88
9)
21.64
10)
0
Let me know if you’d like to see any problem worked out visually or explained differently!
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting decimals worksheets.
