Question

(a) Find out what the first five digits of a zip code tell the post office. (b) Find out what the first three digits of a Social Security number indicate.

Name: Problem 42, Chapter 3: Mathematics for Teachers: An Interactive Approach for Grade K-8
Uploaded: 2020-08-20T21:23:14-08:00
Duration: 2 min 48 s
Channel: Ankit Gupta
Description: (a) Find out what the first five digits of a zip code tell the post office. (b) Find out what the first three digits of a Social Security number indicate.

   (a) Find out what the first five digits of a zip code tell the post office.
(b) Find out what the first three digits of a Social Security number indicate.

Mathematics for Teachers: An Interactive Approach for Grade K-8

Thomas Sonnabend 4th Edition

Chapter 3, Problem 42

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Solved by Expert Ankit Gupta

08/20/2020

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(a) Find out what the first five digits of a zip code tell the post office. (b) Find out what the first three digits of a Social Security number indicate.

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Key Concepts

ZIP Code System

The ZIP code system is a numerical method used by the postal service to designate a specific geographic area for efficient mail delivery. The first five digits identify the regional area and, more specifically, the post office or postal zone within larger areas, facilitating sorting and routing.

Social Security Number Area Identifier

The first three digits of a Social Security number, known as the area number, originally indicated the state or geographic region where the number was issued. This regional association, established at the time of assignment, provided context regarding the origin of the holder's record, even though assignments are now randomized.

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