Add slide numbers to your presentation. On the Insert tab, select Insert Slide Number. On the Slide tab, check the Slide number box. Note If you don't want a number to appear on the title slide, also check the Don’t show on title slide box.Select Apply to All. Note The theme applied to your presentation will determine where the numbers appear on your slides.tart your slide numbering with a specific number. On the Design tab, select Slide Size, and then Custom Slide Size. Under Number slides from, pick one of these. To start slide numbering from zero, click the down arrow until you get to ‘ 0 ’. To start the slide numbering from any other number, click the up arrow.