Hello

I really hope someone can help me with this.

I am reading lecture notes and it says the following -

-12 mod 11 = 10

-1 mod 11 = 10

When I do -12 mod 11 and -1 mod 11 on my calculator I get -1 for both.

Is there a trick or something extra I am missing here?

Note I am dealing with finite fields.

Any help greatly appreciated.

Thanks