How is a number classified as divisible by 10?

A number is classified as divisible by 10 if it ends with a 0. This is because the property of divisibility by 10 is based on the decimal system, in which each place value represents a power of 10. When a number ends in 0, it indicates that it is a multiple of 10, meaning that it can be evenly divided by 10 without leaving a remainder.

In this context, other options do not meet the criteria for divisibility by 10. Ending with 5 would indicate a number that is divisible by 5, but not by 10. Ending with an even number (such as 2, 4, 6, or 8) suggests that the number is divisible by 2, which is not related to divisibility by 10. Lastly, stating that a number ends with any digit includes numbers that do not have 0 as their last digit, which would disqualify them from being divisible by 10. Thus, the requirement for a number to be classified as divisible by 10 is clearly fulfilled only when it ends with 0.