3.981+14.34+12.5=?

Options

A. 30.821
B. 31.821
C. 30
D. 35

Answer

To solve the problem \(3.981 + 14.34 + 12.5\), we will follow these steps:

### Step 1: Align the numbers by their decimal points
We will write the numbers one below the other, aligning them by the decimal point.

```
3.981
+ 14.340
+ 12.500
```

### Step 2: Add the numbers from right to left
We will start adding from the rightmost column (thousandths) and move to the left.

1. **Thousandths place**:
- \(1 + 0 + 0 = 1\)

2. **Hundredths place**:
- \(8 + 4 + 0 = 12\) (write down 2 and carry over 1)

3. **Tenths place**:
- \(9 + 3 + 5 + 1 (carry) = 18\) (write down 8 and carry over 1)

4. **Units place**:
- \(3 + 4 + 2 + 1 (carry) = 10\) (write down 0 and carry over 1)

5. **Tens place**:
- \(1 + 1 (carry) = 2\)

### Step 3: Write down the final result
Combining all the results, we get:

```
3.981
+ 14.340
+ 12.500
---------
30.821
```

Thus, the final answer is \(30.821\).

### Final Answer:
\[ 3.981 + 14.34 + 12.5 = 30.821 \]