Pre-Algebra : Order of Operations

Study concepts, example questions & explanations for Pre-Algebra

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Example Questions

Example Question #12 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

Possible Answers:

Correct answer:

Explanation:

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

Example Question #82 : Operations & Algebraic Thinking

Select the equation that reflects the phrase below.

  more than  times .

 

Possible Answers:

Correct answer:

Explanation:

 more than  times  is the same as  because more means to add and times means muitpilcation. 

Example Question #83 : Operations & Algebraic Thinking

Select the equation that reflects the phrase below.

 minus , then multiply 

Possible Answers:

Correct answer:

Explanation:

We want to first subtract  and , so we need to set that in parentheses because of the order of operations. Then we can multiply by 20. 

Example Question #3 : Write And Interpret Simple Expressions That Record Calculations: Ccss.Math.Content.5.Oa.A.2

Select the equation that reflects the phrase below. 

First divide  and , then multiply .

Possible Answers:

Correct answer:

Explanation:

Because of order of operations, when we have division and mulitplication, we work left to right. So we can first write  divided by  and then we can multiple by .

Example Question #3 : Write And Interpret Simple Expressions That Record Calculations: Ccss.Math.Content.5.Oa.A.2

Select the equation that reflects the phrase below. 

First subtract  and  then dvide by .

Possible Answers:

Correct answer:

Explanation:

Because we want to subtract  and , we need to set that off into parentheses so that operation comes before we divide by .

Example Question #74 : Operations And Properties

Select the equation that reflects the phrase below. 

First subtract  and , then divide

Possible Answers:

Correct answer:

Explanation:

Because we want to subtract  and  first, we need to set that off into parentheses due to the order of operation rules. Then we can do the division of

Example Question #71 : Order Of Operations

Select the equation that reflects the phrase below. 

First multiply  and  then divide by .

Possible Answers:

Correct answer:

Explanation:

Because of the order of operations, when we have multiplication and division we work from right to left. Since we first want to multiple  and , we do  then we do the 

Example Question #72 : Order Of Operations

Select the equation that reflects the phrase below. 

First add  and , then multiply by

Possible Answers:

Correct answer:

Explanation:

Because we want to add  and  first, we need to set that off into parentheses due to the order of operation rules. Then we can do the multiplication of 

Example Question #77 : Operations And Properties

Select the equation that reflects the phrase below. 

First subtract  and , then multiply by 

Possible Answers:

Correct answer:

Explanation:

Because we want to subtract  and  first, we need to set that off into parentheses due to the order of operation rules. Then we can do the multiplication of 

Example Question #78 : Operations And Properties

Select the equation that reflects the phrase below. 

First add  to  then divide by .

Possible Answers:

Correct answer:

Explanation:

Because we want to add  and  first, we need to set that off into parentheses due to the order of operation rules. Then we can do the division by 

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