This short answer modified question in order to allow to interact through an spreadsheet interface with all the basic functionalities like formulas add/delete cols/rows etc.

Also it has a field to help to fill the enviroment question so the answer only evaluates the points we are interested in.

Download page: https://paradisolms.net/plugins/view.php?plugin=qtype_type_calc_sheet

Author’s info page: http://www.taringa.net/posts/ciencia-educacion/16776726/2-Nuevos-tipos-de-pregunta-para-LMS-Hoja-de-Calculo-Word.html

See also: Question types