Pre-Algebra : Operations and Properties

Study concepts, example questions & explanations for Pre-Algebra

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Example Questions

Example Question #11 : Order Of Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations: parentheses, exponents, multiplication, division, addition, and subtraction. Work from left to right, and start with the innermost nested operations when dealing with multiple parentheses:

 

 

 

 

 

Example Question #11 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations: parentheses, exponents, multiplication, division, addition, and subtraction. Work from left to right, and start with the innermost nested operations when dealing with multiple parentheses:

Example Question #12 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations: parentheses, exponents, multiplication, division, addition, and subtraction. Work from left to right, and start with the innermost nested operations when dealing with multiple parentheses:

Example Question #13 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations: parentheses, exponents, multiplication, division, addition, and subtraction. Work from left to right, and start with the innermost nested operations when dealing with multiple parentheses:

Example Question #14 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations: parentheses, exponents, multiplication, division, addition, and subtraction. Work from left to right, and start with the innermost nested operations when dealing with multiple parentheses:

Example Question #15 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations: parentheses, exponents, multiplication, division, addition, and subtraction. Work from left to right, and start with the innermost nested operations when dealing with multiple parentheses:

Example Question #16 : Operations

Possible Answers:

Correct answer:

Explanation:

Remember the order of operations: "PEMDAS” or "Please Excuse My Dear Aunt Sally" stands for "Parentheses, Exponents, Multiplication and Division, Addition and Subtraction". 

Example Question #17 : Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

Follow the order of operations.

First take care of any exponents:

 = 6 - (2 + 25)

Then perform the operations in parentheses:

 = 6 - 27

 = -21

Example Question #19 : Order Of Operations

Simplify:

Possible Answers:

Correct answer:

Explanation:

By order of operations you are supposed to simplify what is in parentheses first giving you 

then you must simplify the exponent to give you

then you must simplify the division portion of the equation to get

 

then simplify this.

Example Question #18 : Operations

Possible Answers:

Correct answer:

Explanation:

Remember the acronym PEMDAS to help you keep track of the order of operations:

  1. Parentheses
  2. Exponents
  3. Multiplication and Division (whichever comes first when reading the problem from left to right)
  4. Addition and Subtraction (whichever comes first when reading the problem from left to right)

Step 1: Parentheses

Step 2: Exponents

Step 3: Multiplication

Step 4: Addition and Subtraction

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