Place value helps us determine the value of numbers. Our (base-10) number system contains numerals (or digits) only from 0 through 9, but we often need to use numbers greater than 9. We show numbers greater than 9 by using place value, which means that the value of a digit is determined by its place in the entire number. In the base-10 number system, each place has a value that's 10 times the value of the place immediately to its right.
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