The value of the 7 in the tens place in the number 772 is greater than the 7 in the hundreds place because it is a positive number, and is NOT a decimal. Think of it this way:
7 in the hundreds place = 700
7 in the tens place = 070
Look at where the 7 in the tens place is. A zero is in front of it.
Hope I was able to help :) please comment if any more questions or more clarification is needed.