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Authors:
M. Morris Mano, Michael D. Ciletti
Chapter:
Digital Systems And Binary Numbers
Exercise:
Problems
Question:15 | ISBN:9780132774208 | Edition: 5

Question

Find the 9’s and the 10’s complement of the following decimal numbers:
(a) 25,478,036               (b) 63, 325, 600
(c) 25,000,000               (d) 00,000,000.

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Answer

Ans:   9's complement of a decimal number is the subtraction of it's each digits from 9.

         10’s complement of a decimal number is obtained by adding 1 to the 9’s complement value.

(a) decimal number - 25478036

      9’s complement - 74521963

    10’s complement - 74521964

(b) decimal number - 63325600

    9’s complement  -  36674399

  10’s complement  -  36674400

(c) decimal number- 25000000

    9’s complement  - 74999999

  10’s complement  - 75000000

(d) decimal number - 00000000

      9’s complement - 99999999

    10’s complement -100000000

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