If you want to root tablet with easy way, you'd better choose a root tool with good reputation. iRoot can help you complete this task. Follow these steps:
Step 1: Download and Install iRoot apk file.
Step 2: Make sure you have backed up your data before. Open iRoot and click the “Get Root access”on the interface.
Step 3: Now your device is on the rooting process now. Just wait for its success.
Step 4: Congratulations! You have rooted successfully.
Or you can check this page: Root Any Android Tablet