What is the smallest 3-digit number of the form aaa such that it is divisible by 9?

333

Step-by-step explanation:

It is a well known trick that if you add together the digits of a number and they are a multiple of 9, then the number will be divisible by 9. You can therefore start going through the 3 digit numbers as described and testing them.

111=1+1+1=3 or not a multiple of 9

222=2+2+2=6 or not a multiple of 9

333=3+3+3=9 A multiple of 9! This is the correct answer.

Hope this helps!

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step-by-step explanation:

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