What is the value of 9 + 6 × 2 - 3?

Prepare for the Praxis Elementary Education: Mathematics CKT (7813) Exam with interactive questions, detailed explanations, and key insights to boost your confidence. Get started now!

To determine the value of the expression ( 9 + 6 \times 2 - 3 ), it is essential to apply the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

Following this order, we first handle the multiplication:

  1. Calculate ( 6 \times 2 ), which equals ( 12 ).
  2. Next, substitute this back into the expression, resulting in ( 9 + 12 - 3 ).

Now, proceed with addition and subtraction from left to right:

  1. First, add ( 9 ) and ( 12 ) to get ( 21 ).
  2. Then, subtract ( 3 ) from ( 21 ), resulting in ( 18 ).

Thus, the value of ( 9 + 6 \times 2 - 3 ) is ( 18 ). This aligns with the choice that indicates ( 18 ) as the answer. This methodical application of the order of operations is crucial for accurate calculations in mathematics.

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