Not all multiples of 40 are multiples of 80. Only the even multiples of 40 are also multiples of 80. The odd multiples, e.g. 40, 120, 200, 280, and 360, are not multiples of 80.
-15
33 multiples of 3 10 multiples of 10 -3 multiples of both 40 total
They are 20, 40, 60, 80, 100.
40 and all its multiples...
20, 40, 60, 80, 100, 120 * * * * * These are the first six multiples!
20, 40, 60, 80, 100.
The answer is 40 because 20x2=40 and 5x8=40.
20, 40, 60, 80, 100.
Multiples of 20 include 20, 40, 60, 80 and 100.
The multiples of 40 are 40, 80, 120, 160, 200, 240, 280, 320, and so on. The multiples of 50 are 50, 100, 150, 200, 250, 300 350, 400, 450, 500, and so on. The common multiples of 40 and 50 are 200, 400, 600 and so on.
20, 40, 60, 80, 100, 120
Multiples of what???For example, to get multiples of 20, just start with 20 and add 20 at a time: 20, 40, 60, ...
There are 10 multiples of 10 between 1 and 100: 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100.
Not all multiples of 40 are multiples of 80. Only the even multiples of 40 are also multiples of 80. The odd multiples, e.g. 40, 120, 200, 280, and 360, are not multiples of 80.
The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, and so on. The multiples of 10 are 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, and so on.
Multiples of 20 are 20, 40, 60, 80 and 100. For them to be common, they need to be compared to another set of multiples.