Young students have to do a variety of math-conversion problems, including how to convert miles into tenths of a mile. One-tenth of a mile is precisely 528 feet -- about half the length of the world’s largest cruise ship or slightly less than twice the height of the Statue of Liberty from its base to the tip of the torch. Fortunately, converting miles to tenths of a mile doesn’t require a calculator, though using one will speed up your calculations.

Determine the number of miles you wish to convert into tenths of a mile. For example, suppose you want to convert 20 miles.

Punch in "20" on your calculator. Hit the multiplication key.

Type in "10," the number of tenths of a mile in a single mile. Hit the "=" key to tabulate the number of tenths in 20 miles, which is 200.

Convert a mixed fraction like 2 1/2 miles to tenths. First, convert the fraction 1/2 to tenths by multiplying the numerator and denominator by 5. This yields 2 5/10. Now multiply the denominator, 10, by the whole number, 2. Add that figure to the numerator, 5, to get the improper fraction 25/10. So 2 1/2 miles represents 25 tenths of a mile.