0 (Zero)
a digit
390 480 570
1000
5, 10, 15 any multiple of 5
tenth thousand
Any multiple of ten ends with the digit 0.
One million (1,000,000).
9876543120
a digit
1000
390 480 570
Any multiple of ten. 10
These are all the two-digit multiples of ten: 10, 20, 30, 40, 50, 60, 70, 80, 90.
A digit.
A digit.
9
I believe there are 81. There are 9 after every multiple of 10, including 90.