How can I transfer my apps in my lauchpad from a macbook pro to a macbook air?I am switching from a macbook pro to a macbook air. How can I switch my apps in my launchpad from the pro to the air?

I am switching from a macbook pro to a macbook air. How can I switch my apps in my launchpad from the pro to the air? These apps are not showing up in my itunes so I'm not sure if they will switch automatically. I purchased the entire Microsoft Word, Powerpoint, Excel, Suite and I don't want to loose my purchase. Can I transfer these apps from one computer to the next?