Calculating five times the number 100

To calculate five times the number 100, you use multiplication, specifically multiplying 100 by 5. Multiplication here means you are taking the value of 100 and combining it five times, which scales the number up proportionally. Think of it as adding 100 five separate times: 100 + 100 + 100 + 100 + 100. Performing the operation 100 * 5 accomplishes this in a single step. The expression 500 captures this calculation, so when you substitute any value for 100, evaluating 100 * 5 will give you five times that original number.