Add: `15.44, 7.524 and 25`

Options

A. `47.904`
B. `27.96`
C. `47.964`
D. `47.977`

Answer

To solve the problem of adding the numbers 15.44, 7.524, and 25, we will follow these steps:

### Step 1: Convert the numbers to like decimals
To add these numbers, we need to ensure they all have the same number of decimal places.

- The number 15.44 has 2 decimal places. We can write it as 15.440 (adding one zero).
- The number 7.524 already has 3 decimal places, so we leave it as is.
- The number 25 has no decimal places. We can write it as 25.000 (adding three zeros).

Now, we have:
- 15.440
- 7.524
- 25.000

### Step 2: Align the numbers for addition
Next, we align the numbers by their decimal points:

```
15.440
+ 7.524
+ 25.000
```

### Step 3: Add the numbers column by column
We will add starting from the rightmost column (the thousandths place):

1. **Thousandths place**: 0 + 4 + 0 = 4
2. **Hundredths place**: 4 + 2 + 0 = 6
3. **Tenths place**: 4 + 5 + 0 = 9
4. **Units place**: 5 + 7 + 25 = 37 (write down 7 and carry over 3)
5. **Tens place**: 1 (from carry) + 1 + 0 + 2 = 4

So, the sum is:
```
15.440
+ 7.524
+ 25.000
---------
47.964
```

### Final Answer
The sum of 15.44, 7.524, and 25 is **47.964**.