Subtract 47.56 from 83.2.

Options

A. 35
B. 35.64
C. 30.64
D. none of these

Answer

To solve the problem of subtracting 47.56 from 83.2, we can follow these steps:

### Step-by-Step Solution:

1. **Write the subtraction problem**:
We need to subtract 47.56 from 83.2. This can be written as:
\[ 83.2 - 47.56 \]

2. **Align the numbers vertically**:
To make subtraction easier, we align the numbers by their decimal points. We can add a zero to 83.2 to make it 83.20:
```
83.20
- 47.56
```

3. **Subtract starting from the rightmost column**:
- In the hundredths place: \(0 - 6\) cannot be done, so we need to borrow 1 from the tenths place (which turns 2 into 1). Now we have:
\[ 10 - 6 = 4 \]
- In the tenths place: After borrowing, we have \(1 - 5\) which also cannot be done, so we borrow from the units place (which turns 3 into 2). Now we have:
\[ 11 - 5 = 6 \]
- In the units place: Now we subtract \(2 - 7\) which again cannot be done, so we borrow from the tens place (which turns 8 into 7). Now we have:
\[ 12 - 7 = 5 \]
- In the tens place: Finally, we subtract \(7 - 4\):
\[ 7 - 4 = 3 \]

4. **Combine the results**:
After performing all the subtractions, we combine the results from each column:
\[ 35.64 \]

5. **Final Answer**:
Thus, the result of subtracting 47.56 from 83.2 is:
\[ 83.2 - 47.56 = 35.64 \]