Delete multiple columns using column numbers

Question

Just wanted to share as I had huge amount of trouble looking for ways to do this online and have finally gotten it through series of trial and error.

Sheet1.Range(Cells(1, 11), Cells(1, 100)).EntireColumn.Delete

This deletes columns 11 to 100.

Answer 1

With Sheet1
    .Range(.Cells(1, 11), .Cells(1, 100)).EntireColumn.Delete
End With

Answer 2

More ways

Deleting consecutive columns like 1 - 100

Sub Sample()
    With Sheet1
        'A:CV
        .Columns(ReturnName(1) & ":" & ReturnName(100)).Delete Shift:=xlToLeft
    End With
End Sub

'~~> Returns Column Name from Col No
Function ReturnName(ByVal num As Integer) As String
    ReturnName = Split(Cells(, num).Address, "$")(1)
End Function

Deleting non consecutive columns like 1, 3, 5

Sub Sample()
    With Sheet1
        'A:A,C:C,E:E
        .Range( _
                ReturnName(1) & ":" & ReturnName(1) & "," & _
                ReturnName(3) & ":" & ReturnName(3) & "," & _
                ReturnName(5) & ":" & ReturnName(5) _
               ).Delete Shift:=xlToLeft
    End With
End Sub

Function ReturnName(ByVal num As Integer) As String
    ReturnName = Split(Cells(, num).Address, "$")(1)
End Function

'**Another way**

Sub Sample()
    Dim Rng As Range

    With Sheet1
        Set Rng = Union(.Columns(1), .Columns(3), .Columns(5))
    End With

    Rng.Delete Shift:=xlToLeft
End Sub