how many 2 digit whole numbers are there between 5 and 92

Two digits whole number between 5 and 92 are: 10,11,12,......., 90, 91 , 92.

Now, in order to count the total numbers, we proceed  as:

First we will count the total number between 10 and 92, i.e., 92 - 10 = 82

Now, 10 is also a 2-digit whole number, so the total whole numbers between 5 and 92 are 82 + 1 = 83. 

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