Find the sum.
`10.86 + 12.55`

Options

A. `23.61`
B. `23.21`
C. `23.44`
D. `23.41`

Answer

To find the sum of 10.86 and 12.55, follow these steps:

### Step 1: Write the numbers in a column
Align the numbers by their decimal points:
```
10.86
+ 12.55
```

### Step 2: Add the numbers starting from the right
1. Start by adding the hundredths place:
- 6 (from 10.86) + 5 (from 12.55) = 11
- Write down 1 and carry over 1 to the tenths place.

2. Next, add the tenths place:
- 8 (from 10.86) + 5 (from 12.55) + 1 (carry over) = 14
- Write down 4 and carry over 1 to the units place.

3. Now, add the units place:
- 0 (from 10.86) + 2 (from 12.55) + 1 (carry over) = 3
- Write down 3.

4. Finally, add the tens place:
- 1 (from 10.86) + 1 (from 12.55) = 2
- Write down 2.

### Step 3: Write the final answer
Combine all the digits you wrote down:
```
10.86
+ 12.55
-------
23.41
```
So, the sum of 10.86 and 12.55 is **23.41**.

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