You can add slide/page numbers to your documents in ClarisImpact and ClarisWorks.
ClarisImpact:
1. Create a new Presentation document
2. Go to the Master slide
3. Create a Text block (Text Model)
4. Choose Insert Slide # from the Text menu
ClarisWorks:
1. Create any type of document (except database)
2. Choose Insert Header or Footer from the Format menu
3. Choose Insert Page # from the Edit menu
Note that you cannot add page/slide numbers to MacDraw Pro or ClarisDraw documents.