Unfortunately, there's no regular way for you to block the ads on your Android tablet. As far as I know, the only way to do this is to root the device, which will void your warranty and leave your tablet vulnerable to infections.
The only thing I can help you with is blocking ads while browsing the web, which can be done either by using the Opera version for Android (that automatically blocks all ads) or by installing the Adblock Browser for Android. Both of them are free.