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Please help, im confused

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Gord was looking at these multiples of 9: 18, 45, 63, 72, 81, 108, 216. He claimed that the sum of the digits in any multiple of
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Oh, multiple. I read it as multiply. I see why I'm wrong now, I kept thinking that the numbers have to be multiplied by 9, and not they have to be multiples of 9. Thank you, When I said "sum of the digits is 36", I had meant that 4x9=36 when I tried to
sorry, I meant the sum of the digits is 36 and not 9.
I know it might sound stupid, but I said that I disagreed with him. The sum of the digits in any multiple of 9 will not add to 9, because the number will get bigger and bigger as the number that it multiplied by 9 gets bigger. F.E., 9x4=36. The sum of the

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