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Omission and Insertion Errors Flashcards

7 cards from real USPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Omission and Insertion Errors flashcards as text
  1. Original: 'Albuquerque, NM 87104'. Copy: 'Abuquerque, NM 87104'. The error is:

    Answer: A letter omitted from the city name

    'Albuquerque' lost the 'l' to become 'Abuquerque', which is an omission of the second letter.

  2. Original: '3310 Sunflower Road, Unit 5'. Copy: '33100 Sunflower Road, Unit 5'. This is classified as:

    Answer: Insertion — an extra zero added to the street number

    The street number '3310' became '33100' with an appended zero, making this an insertion error.

  3. Original: 'Louisville, KY 40202-1111'. Copy: 'Louisville, KY 40202-111'. What error does the copy contain?

    Answer: A missing digit in the ZIP+4 extension

    The ZIP+4 extension '1111' was reduced to '111' in the copy, missing the last digit — an omission error.

  4. Which of the following is an example of an insertion error in a postal name field?

    Answer: 'Thompsoon' instead of 'Thompson'

    'Thompsoon' has an extra 'o' inserted compared to the correct 'Thompson'.

  5. Original: '1792 Blue Ridge Pkwy, Apt 3F'. Copy: '1792 Blue Ridge Pkwy, Apt F'. The copy has:

    Answer: A missing digit from the apartment number

    The apartment '3F' lost its digit '3' in the copy, leaving only 'F' — an omission of the numeric component.

  6. Original: 'Chattanooga, TN 37402'. Copy: 'Chattanoooga, TN 37402'. The copy error is:

    Answer: An extra letter inserted into the city name

    'Chattanooga' became 'Chattanoooga' with a triple 'o', indicating an insertion of an extra 'o'.

  7. Original parcel tag reads 'Box 447, Rural Route 2'. Copy reads 'Box 4477, Rural Route 2'. This demonstrates:

    Answer: Insertion — an extra digit was added to the box number

    Box number '447' became '4477' with a repeated '7', meaning an extra digit was inserted.