In your open presentation, just click the Handout tab above the slide view.
In the slide layout view that appears, look to the right and find the Layouts tab.
Choose the number of slides you want per page.
To print your handouts multiple slides per page, Choose File -> Print. Then click the Options button. In the Contents section of the Printer Options window, make sure that only the Handouts option is selected.

Click
OK in the Printer Options window to save the changes and close the
window. Make sure that Orientation is set to what you want, either Landscape or Portrait, under the Properties in the Print window. Then click Print button.