In Excel it is possible to style text within a cell, by pressing Crtl+1.You can create for example the following sequence: 1,2,3,4.Is that possible in Google Spreadsheets?
Styling Text Within a Cell in Google Spreadsheets
google spreadsheets
As of quite recently (02-09-2015) it is possible in Google Spreadsheets to have partial formatting within a cell.QuotePartial cell formatting in Sheets When it comes to spreadsheetsand  the cells that comprise themwe know that one size doesnt always fit  all. Thats why its now possible to select only a portion of the  characters within a cell in Sheets and to apply text formatting to  only those characters (as opposed to the entire cell). This  functionality is available on the web and in the Sheets Android app.ScreenshotNoteIt might take a while for the feature to be available as it's being rolled out.Referencehttp://googleappsupdates.blogspot.nl/2015/09/do-your-best-work-with-google-docs.html