Finding triple of -15 quickly

To find the triple of -15, the key step is to multiply -15 by 3. Tripling a number means you combine three copies of the number together, which multiplication simplifies into one operation. So, instead of adding -15 three times, you multiply it by 3. By performing the calculation -15 * 3, you directly obtain -45, which represents the triple of -15. This straightforward approach ensures you can quickly and accurately calculate the triple for any number -15 without additional steps or complications. Understanding how multiplication works as repeated addition helps clarify why this method efficiently gives the desired triple value.