What is 10 x -38 mod 11?

What is 16 x -80 mod 16?

What is 278-421 mod 19?

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- December 3rd 2009, 07:06 AMsirellwoodvery quick modulo question
What is 10 x -38 mod 11?

What is 16 x -80 mod 16?

What is 278-421 mod 19? - December 3rd 2009, 07:47 AMBruno J.

- December 3rd 2009, 08:10 AMsirellwood
Thanks

Shouldnt i get numerical answers?

I got 9 for the 3rd one.... - December 3rd 2009, 02:34 PMBacterius
No it is indeed for the last one, because and .

EDIT : ah yes chiph588@ you are right, but why put a substraction question following two multiplication questions ? This is confusing (Nod) - December 3rd 2009, 03:52 PMchiph588@
For the third are you wanting or ?

If it is the latter, then is the correct answer.