$\"\"$

If a number is a multiple of $\"\"$ , then the number is divisible by $\"\"$ .

The number is $\"\"$ .

The number is a multiple of $\"\"$ .

It is divisible by $\"\"$ .

$\"\"$ is a multiple of $\"\"$ and is divisible by $\"\"$ .

Valid conclusion: The last digit is a $\"\"$ .

$\"\"$

Valid conclusion: The last digit is a $\"\"$ .