how to calculate whole numbers between 5 to 20

To calculate the number of whole numbers between 5 and 20, you can subtract 4 from 20 (since we want to include 20) and then subtract 1 to account for the number 5, which is the first whole number in the range. This gives us:

20 – 4 – 1 = 15

Therefore, there are 15 whole numbers between 5 and 20 (inclusive).


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