VoiceOver only speaks aloud text on screen, it does not support voice control.
To make this as easy as possible, please use your iPad in Portrait:
To disable VoiceOver, with VoiceOver on:
> Tap on the Settings App (iPad will speak "Settings, double tap to open" and a rectangle will appear around it, that means you've selected it)
> Double-tap Settings App (this will launch Settings)
> Tap the General Section from the list on the left (it should be selected by default)
> Double-tap General if it is not selected.
In the General section:
> Swipe UP with THREE fingers, and the list will scroll to the bottom. (If it doesn't scroll, try swiping in other direction)
> In the General section list that just scrolled, tap, then double-tap Accessibility.
> In Accessibility, tap, then double-tap VoiceOver.
> In VoiceOver, tap, then double-tap VoiceOver option field.
This will disable VoiceOver for you.
Following this process will solve your issue, hope it helps you out!