Sub Replace_Digits_With_Wds()

Dim oRng As range

Application.ScreenUpdating = False
Set oRng = ActiveDocument.range
    With oRng.Find
        .ClearFormatting
        .Replacement.ClearFormatting
        .Forward = True
        .Wrap = wdFindStop
        .Format = True
        .MatchWildcards = True
        .text = Chr(9) & "1([!0-9])"
        While .Execute
            oRng.End = oRng.End - 1
            oRng = Chr(9) & "-"
            oRng.Font.ColorIndex = wdBrightGreen
            oRng.Collapse wdCollapseEnd
        Wend
Application.ScreenUpdating = True
Set oRng = Nothing
End With