Calculating seven times 15

To calculate seven times 15, start with the number 15 and multiply it by 7. This multiplication is the same as adding 15 seven times, which can be expressed as 15 + 15 + 15 + 15 + 15 + 15 + 15. Using multiplication simplifies this repeated addition to the expression (15 * 7), which gives the product 105. The value of 105 depends on what 15 represents. For example, if 15 is zero, multiplying by seven still results in zero because zero added any number of times is zero. When you replace 15 in the expression (15 * 7) with its actual value, you obtain 105, demonstrating how multiplication scales the original number by a factor of seven.