I am a number between 60 and a 100. My ones digit is 2 less than my tens digit. I am a prime number. What am I? Explain.

5 answers

Study these sites.

http://www.mathsisfun.com/prime_numbers.html

http://www.mathatube.com/sitebuilder/images/place-value-chart-53-591x461.jpg

What is your answer?
97
Right.
It is 74
97