Summarize the following:
Make a small mark on the edge of the laminate, so you know where to cut or use a chalk pencil to draw your measurement line across the face of the laminate. You can easily wipe the chalk off the surface after you are done cutting.

Summary:
Use a circular saw or a handsaw with at least 18 teeth per inch to avoid chipping it. Mark the line on the laminate flooring. Leave the laminate facing right-side-up and cut it with a circular saw or handsaw.