Finding the double value of 40

To find the double value of 40, start by understanding that doubling a number means multiplying it by 2. Here, 40 stands for the initial number you want to double. The process involves taking this number and multiplying it by 2 to get a new value. The calculation is represented by (40 * 2), which means you multiply 40 by 2. This operation yields 80, which is exactly twice the size of the original 40. This formula can be applied to any number 40 to quickly find its double, making it a valuable and straightforward arithmetic skill.