Calculating five times the number 2.2

To calculate five times the number 2.2, you use multiplication, specifically multiplying 2.2 by 5. Multiplication here means you are taking the value of 2.2 and combining it five times, which scales the number up proportionally. Think of it as adding 2.2 five separate times: 2.2 + 2.2 + 2.2 + 2.2 + 2.2. Performing the operation 2.2 * 5 accomplishes this in a single step. The expression 11 captures this calculation, so when you substitute any value for 2.2, evaluating 2.2 * 5 will give you five times that original number.