The first four multiples of 20 are: 20 40 60 80
45 and 54 are the multiples of 9 between 40 and 60
Nope, neither are multiples of 9.
The LCM of 20 and 30 is 60. The multiples of 20 are 20, 40, 60, and so on. The multiples of 30 are 30, 60, and so on. So teh LCM of 20 and 30 is 60.
The multiples of 20 are 20, 40, 60, 80, 100, 120... The multiples of 30 are 30, 60, 90, 120, 150... The multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135... The common multiples of 20, 30, and 15 are 60, 120, 180, 240...
20, 40, 60 and so on. 30, 60, 90 and so on. Common multiples include 60, 120, 180 and so on.
63 and 72 are the only two multiples of 9 between 60 and 80.
Multiples of what???For example, to get multiples of 20, just start with 20 and add 20 at a time: 20, 40, 60, ...
20, 40, 60, 80, 100, 120 * * * * * These are the first six multiples!
Multiples of 20 include 20, 40, 60, 80 and 100.
The multiples of seven between 20 and 60 are: 21, 28, 35, 42, 49, 56.
60 and the infinitely many multiples of 60.