Check for Errors Section

Each question in the Check for Errors section is a pair of 8-digit numbers that you are to compare to see if they are exactly alike or have any differences whatsoever.

This may not sound terribly difficult, but the slight variations in the numbers and the need for meticulous comparisons make it challenging indeed. A surprising number of applicants fail this section.

To assure success, our USPS Practice Tests with Actual Postal Exam Questions & Proven Best Answers gives you strategies for quickly and accurately identifying any differences. Included in this guide are four complete, ultra-realistic, and fully interactive practice tests.

Order this guide right away to assure you achieve your absolute highest possible score and get the job! Click here for details.

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Best Selling Job, Exam & Interview Guides

  • 215

Your USPS study guide is worth EVERY PENNY! I scored a 99 on both the 474 & 477 tests. I haven’t taken the 475/476 tests yet, but I’m sure I will get high scores on those as well. I highly recommend your insightful study guide!

- T.A., 4/26/23

It worked. I crushed exam 474. Two thumbs up!

- D.M., 4/13/23

I studied the guide for a day and scored a 99 on the 477 assessment! I 100% recommend using this guide! It is almost the exact same as the actual exam!

- K.C., 4/9/23