help with VB.NET code...

[snakegaer]

hi

it is easy to do formulas in Excel
there is a lot of worksheets in Excel that is useful
now i want to convert some formulas to VB.NET
how do i convert those 3 formulas in Excel to work in VB.NET

1)

كود PHP:

=MOD(280+1*2556,360) 


2)

كود PHP:

=TEXT(280/24,"[hh] mm' ss''") 


3)

كود PHP:

=90*(TRUNC(280/90)) 


thanks