Calculating double of -5.5 effectively

Doubling a number involves adding that number to itself, which is equivalently expressed by multiplying the number by 2. Here, -5.5 represents the initial number we want to double. When we multiply -5.5 by 2, we are essentially calculating two times the original amount. To perform this calculation step by step, first recognize -5.5 as the baseline value. Then, multiply -5.5 by 2, which gives the amount that is twice the size of the original number. The expression (-5.5 * 2) captures this operation in a concise mathematical form. The final value -11 is the doubled value obtained directly from this multiplication.