Find the predecessor of the greatest 3-digit number.



Step by Step Explanation:
  1. Let us first find out the greatest 3-digit number.
    To find the greatest 3-digit number, we have to place the greatest digit, i.e., 9 at three different positions.
  2. Hence, the greatest 3-digit number formed is:
  3. As we know, the predecessor of a whole number is 1 less than the given number.
  4. Therefore, the predecessor of 999 is (999 − 1) = 998

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