Because every alternate multiple is also divisible by ten - therefore it ends in zero !
Every other number that ends in 5 is a multiple of 5 this is why
Any multiple of 10.
A multiple of 10 must end in a zero
If a number is a multiple of 5, it will be greater than 5 and end in a 5 or a zero.
Every whole number that ends with ' 5 ' or ' 0 ' is a multiple of 5 . Every whole number that ends with ' 0 ' is a multiple of 10.
Not all (5 is prime) but every multiple of 5 greater than 5 is composite because they have more than two factors. Every multiple of any integer greater than one is composite.
10, 20, 30.... Any even multiple of five.
yes because if it has a zero or five at the end you know its a multiple of 5
Yes.
Every whole number that ends in 5 is a multiple of 5 .It doesn't matter what comes before the 5 .
Yes.
If it has a 0 or a 5 at the end of it.