How to change pages using CALC i.e. go from page to page
MKD
Your details don’t elaborate what the title already states (and this is incomprehensible to me; I doesn’t make clear what you want to achieve). Please take a look into How To Ask Questions The Smart Way
PS: If you use page synonymously for sheet, and the question means How to select another sheet then just click the desired sheet’s tab at the bottom of the spreadsheet to select another sheet (A spreadsheet is not, unlike Writer/Text documents, organized in pages but sheets).