The associative property of multiplication states that the way in which numbers are grouped in a multiplication operation does not change the product. This means that for any numbers \( p \), \( q \), and \( r \):
\[ p \cdot (q \cdot r) = (p \cdot q) \cdot r \]
To rewrite the expression \( p \cdot (q \cdot r) \) using the associative property, you can express it as:
\[ (p \cdot q) \cdot r \]
Thus, \( p \cdot (q \cdot r) \) can be rewritten as \( (p \cdot q) \cdot r \).