Pre-Algebra : Pre-Algebra

Study concepts, example questions & explanations for Pre-Algebra

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Example Questions

Example Question #4 : 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, and then the division.

 

Example Question #9 : 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 #62 : Operations And Properties

Solve:

Possible Answers:

Correct answer:

Explanation:

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

Example Question #63 : Operations And Properties

Solve:

Possible Answers:

Correct answer:

Explanation:

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

 

Example Question #71 : Order Of Operations

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

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

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 #4 : 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 #71 : Operations

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 #91 : Operations & Algebraic Thinking

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

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