How can multiples of ten be multiples of five?

5*2 2*5 10*1 1*10 and yourself 10 time!!! heheheheh

10, 30, 50, 70, 90, etc

20,30,40,50,60,70,80,90.... Just add 10

5,10, 15, 20... any number that ends in 5 or 0 is a multiple of 5

Any number that ends with a digit other than 0 or 5.