The way you should probably look at it:
Any digit x in the hundreds place is 10 times the value of that same digit x in the tens place.
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or
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The nitpicky way of looking at it:
The value of the digit 7 in anything can't be 10 times the value in anything else because there is no digit x such that 10*x = 7.
The value of the digit 7 in 34,725 is the same as the value of the digit 7 in 9,873. Their values are both 7.