Multiply :
`5.4xx1000`

Answer

To solve the multiplication of \( 5.4 \times 1000 \), we can follow these steps:

### Step 1: Write the multiplication
We start with the expression:
\[ 5.4 \times 1000 \]

### Step 2: Remove the decimal
To make the multiplication easier, we can convert \( 5.4 \) into a fraction:
\[ 5.4 = \frac{54}{10} \]
So we rewrite the multiplication as:
\[ \frac{54}{10} \times 1000 \]

### Step 3: Simplify the expression
Next, we can simplify the multiplication:
\[ \frac{54 \times 1000}{10} \]

### Step 4: Multiply the numbers
Now, we multiply \( 54 \) by \( 1000 \):
\[ 54 \times 1000 = 54000 \]

### Step 5: Divide by 10
Now, we divide \( 54000 \) by \( 10 \):
\[ \frac{54000}{10} = 5400 \]

### Final Answer
Thus, the final answer is:
\[ 5.4 \times 1000 = 5400 \]

---