The updates were designed to resolve issues that prevented proper navigation and editing with VoiceOver.
Pages is a word processor that runs on mobile iOS devices. It can be used to write papers, reports, resumes and other documents.
Numbers is a spreadsheet app that includes support for multi-touch gestures. You can create budgets, checklists, charts and more.
Keynote is a presentation app for your mobile device. The app includes animated charts and fancy transitions. You start with an Apple theme and add text, images, charts, and more. You can present directly from your iOS device.
Each of these apps works with an iCloud account to allow storage of your documents and syncing with other iOS devices and Macs.