Calculating eight times -1 value

When calculating eight times the value of -1, multiplication is the most efficient method because it replaces repeated addition. Instead of adding -1 to itself eight times, you multiply -1 by 8. This operation is written as (-1 * 8) and represents the final amount that is eight times greater than the initial number -1. To work through this, begin with the number represented by -1. Then multiply this number by 8 to find the scaled-up value. The outcome of this multiplication is saved in -8. This shows that -8 is exactly eight times the size of -1, illustrating how multiplication provides a quick way to handle repeated addition and scale quantities efficiently.