Check Digit (IGCS) Lesson

3 Slides • 5 Questions

1

Check Digit (IGCS)

2

Fill in the Blanks

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3

Read the following article about ISBN

https://www.isbn-international.org/content/what-isbn

4

Multiple Select

How many digits are there in ISBN?

1

10

2

11

3

12

4

13

5

Fill in the Blanks

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6

Multiple Choice

Is ISBN an unique code?

1

No

2

Yes, it is unique for every copy of the book

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Yes it is unique for every book title

7

Fill in the Blanks

Type answer...

8

So what is check digit?

A digit that is calculated from all the other digits in the code
Usually the last digit in a code
Checks the data entry caused by mis-typing or mis-scanning (barcode)
Check digits are usually find in barcodes, ISBN, credit card and ID card numbers

Check Digit (IGCS)

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