I presume you mean what are all the multiples of 9 up to 100 (and not what are all the multiples of 9, 10, 11, ..., 100 of which there are infinitely many): 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
the common multiples between 1 and 100 for 9 and 10 are 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.
10. They are the first ten multiples of 9.
Just 72. It was found by multiplying 8 and 9. --------------------------------------- The common multiples of two numbers are the multiples of their lowest common multiple. LCM(8, 9) = 72 The common multiples of 8 and 9 are 72, 144, 216, ... The only common multiples less than 100 are 72 only.
100 of them.
11
11
110.
9
There are six: 9, 27, 45, 63, 81,99
9,18,27,36,45,54,63,72,81,90,99
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.
9,18,27,36,45,54,63,72,81,90,99
10 is two in multiples of 2 to 100
9,18,27,36,45,54,63,72,81,90,99