Finding the double of 10.5

To find the double of 10.5, you start by taking the given number represented by 10.5. Doubling means you want to find a number twice as big, so the natural operation to perform is multiplication by 2. This is why the calculation involves multiplying 10.5 by 2. The expression (10.5 * 2) captures this operation mathematically. When you multiply 10.5 by 2, the product you get, denoted as 21, is exactly double the original number. For example, if 10.5 were 7, then 21 would be (7 * 2), which is 14. This logic applies universally to any real number represented by 10.5, making 21 the doubled value of 10.5.