Subtract (1.007-0.7) = ?

Options

A. 1
B. 0.37
C. 0.307
D. none of these

Answer

To solve the problem \(1.007 - 0.7\), we will follow these steps:

### Step 1: Align the Numbers Vertically
Write the numbers in a vertical format, ensuring that the decimal points are aligned. This helps in subtracting the numbers easily.

```
1.007
- 0.700
```

### Step 2: Fill in Zeros
Since \(0.7\) has only one decimal place, we can add two zeros to the right to make it \(0.700\). This makes it easier to subtract.

### Step 3: Subtract the Numbers
Now, we will subtract each column starting from the rightmost side:

1. **Thousandths Place**: \(7 - 0 = 7\)
2. **Hundredths Place**: \(0 - 0 = 0\)
3. **Tenths Place**: \(0 - 7\): Since we cannot subtract \(7\) from \(0\), we need to borrow \(1\) from the next column (the units place). This makes the \(1\) in the units place \(0\) and turns the \(0\) in the tenths place into \(10\). So, \(10 - 7 = 3\).
4. **Units Place**: After borrowing, we have \(0 - 0 = 0\).

Putting it all together, we get:

```
1.007
- 0.700
--------
0.307
```

### Final Answer
Thus, \(1.007 - 0.7 = 0.307\).

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