Use some method which you probably already learned, to find the least common multiple. All the other common multiples are multiples of this least common multiple, so you can multiply the least common multiple by 2, by 3, by 4, etc., to get additional common multiples.
A zero at the end.
The two smallest multiples of 10 are 10 and 20. For them to be common, they would need to be compared to another set of multiples.
81
81 of them.
These are all the two-digit multiples of ten: 10, 20, 30, 40, 50, 60, 70, 80, 90.
100, 110 and 120 are 3 digit multiplies of 10.
60 and 120
60 and 120 are the two lowest common multiples.
Common three-digit multiples of 27 and 11 are 297, 594 and 891. None of their digits add up to 10.
Common multiples of 9 and 10 are all of the multiples of 90.
There is an infinite number of common multiples for 6 and 10. A common multiple of any two numbers is any number into which each of two or more number can be divided with zero remainder.