9,18,27,36,45,54,63,72,81,90,99
There are six: 9, 27, 45, 63, 81,99
I don't know about "magic" in this context. Multiples are the number 9, multiplied by an integer, for example: 0 x 9 = 0 1 x 9 = 9 2 x 9 = 18 etc. If you just keep adding 9 at a time, you will get all the multiples.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99 so there is 11 multiples.
There are 12 multiples of 8 in 1 to 100.
the common multiples between 1 and 100 for 9 and 10 are just 90!
11
9,18,27,36,45,54,63,72,81,90,99
90
just 90
Multiples of 9 up to 100 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99. Multiples of 10 up to 100 are 10, 20, 30, 40, 50, 60, 70, 80. 90, 100. The only common multiple up to 100 of 9 and 10 is 90.
Just 90.
Just ninety.
Just 90
90 that is all
Just 90.
Just 90.