A warehouse supervisor is reviewing inventory counts to see which items can be packed into shipping crates that hold exactly ${}10$ units each. To determine if a batch can be packed without any leftovers, the supervisor applies the divisibility test for ${}10$. What is the specific requirement for a whole number to pass this test?

A logistics coordinator is verifying if a total of ${}2,340$ items can be packed into crates that hold exactly ${}10$ units each. According to the divisibility test for ${}10$, a whole number is divisible by ${}10$ only when its final rightmost digit is exactly ____.

Inventory Distribution Rule

An accountant is auditing a series of business transactions to ensure that all expense reports were submitted in increments of ${}10$. According to the divisibility test for ${}10$, a whole number is divisible by ${}10$ only when its final rightmost digit is exactly ${}0$.

In a professional logistics setting, verifying quantities for distribution into groups of ${}10$ is a frequent task. Match each component of the divisibility test for ${}10$ with its correct description or example.