Quick Check: Python Operator Precedence and Evaluation Order

Review

1. What is the value of `2 + 3 * 4`?

   Multiplication has higher precedence than addition, so Python evaluates `3 * 4` before adding 2.
2. What does parentheses change in an expression?

   Parentheses explicitly group an expression and can therefore change how operators are combined.
3. What does `2 ** 3 ** 2` mean in Python?

   Exponentiation groups from right to left, so the right-hand power is formed first.
4. What is the value of `-2 ** 2`?

   Exponentiation binds more tightly than unary minus on its left, so the expression means `-(2 ** 2)`.
5. Which statement correctly distinguishes precedence from evaluation order?

   Grouping and execution order answer different questions. Python specifies left-to-right evaluation of expressions while precedence determines how operators bind.