Question

if we subtract from any two digit number the sum of its digits, we get a multiple of 9. Explain why this is so using algebra​

Answer 1

Answer:

First, when you subtract the smaller number from the larger one, the result is always a multiple of 9. This happens because, when you divide any number and any scrambled variation of it by 9, the remainder — what's left over after dividing — is always the same.

Step-by-step explanation:

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