There are a total of 5 official GRE computer based tests that are provided by ETS. Two of these tests are free and are called POWERPREP Online tests, and the other three are paid ($\$$39.95 each) and are called POWERPREP PLUS Online tests. The links below organize my video explanations to all five of these official tests.
POWERPREP Online tests were released in 2011. These tests should be your starting point for learning how the computer based test format on the GRE works, and also to gauge your initial progress. After taking the tests, please use the links below to review the questions you may have missed in the test.
POWERPREP PLUS Online tests were released in 2017 (Test 1 and 2), and 2019 (Test 3) and the current cost of these online tests is $39.95 for each test. They are expensive but they are the closest to the real exam, and I urge all GRE test takers to practice with these tests. After taking the tests, please use the links below to review the questions you may have missed in the test.