modulo operator remainder ? whats this ill its want a remainder 2 so i types 10/5 this will give 2 but this exp is wrong !!!

Modulo is different from division. Modulo gives just the remainder.

10 / 5 gives 2

10 % 5 gives 0

how is there any formula for obtaining remainder ???

I’m not really sure what you mean by that.

You can read the technical details of modulo here.

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i used 18 % 8; dont forget the ; or it wont go

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7 % 5 gives 2

10 % 5 gives 0

Thank you!!! That helped a lot. I just needed to add the ;