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  3. given the following numbers: (i) 123456; (ii) 5467

Given the following numbers: (i) 123456; (ii) 546777; (iii) 456734561883. Solve the following questions for each...

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Advance Math

Given the following numbers: (i) 123456; (ii) 546777; (iii)456734561883. Solve the following questions for each of thenumbers.


(a) Identify the check digit.
(b) Does the number satisfy the checksum?
(c) For the numbers that do not satisfy the checksum, changethe value of the check digit so that the new number does satisfythe checksum.

My questions also:
1. The check digit is always the last digit in the number thatis given?
2. I am suppose to reverse the numbers writing it from left toright? Then multiply every second number by 2? If its 2 digits whenmultipled, I add those 2 digits instead? How do I know if that isthe correct check digit?

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