Question

Write the successor and the predecessor of the following numbers.

$999$

Answer 1

Predecessor: The predecessor of a natural number is one less than the given number.

So, the predecessor of $999$ is $=999-1=998$

Successor: The successor of a natural number is one greater than the given number.

So, the successor of $999$ is$=999+1=1000$

Hence, the successor and the predecessor of $999$ are $1000and998$ respectively.