Yes, you can delete multiple applications at once on your MacBook.
1. Open the 'Applications' folder from your 'Finder' menu.
2. Click on one application you want to delete, then hold down the 'Command' key on your keyboard.
3. While holding the 'Command' key, click on the other applications you want to delete.
4. Once you have selected all the applications you want to delete, right-click on any one of them and choose 'Move to Trash'.