MSSQL - Max function that takes 2 valuse - like Math.Max in .NET

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 Here is my table















the following statement will get the biggest value for each user, weather it is Bonus, Salary or Gambling
Select CustomerName ,
 (Select Max(Amount)
   From (Values (Bonus), (Salary), (Gambling)) as tblAllTotals(Amount))
From Table3

Here is my output