Common Core: 8th Grade Math : Understand the Difference Between Rational and Irrational Numbers: CCSS.Math.Content.8.NS.A.1

Study concepts, example questions & explanations for Common Core: 8th Grade Math

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Example Questions

Example Question #21 : Understand The Difference Between Rational And Irrational Numbers: Ccss.Math.Content.8.Ns.A.1

Which of the following answer choices displays an irrational number? 

Possible Answers:

Correct answer:

Explanation:

Our answer choices consist of two types of numbers: rational numbers and irrational numbers. In order to correctly answer this question, we need to know the difference between the two types of numbers. 

Rational numbers are numbers that we use most often, and can be written as a simple fraction. 

Irrational numbers cannot be written as fractions, and are numbers that have decimal places that never repeat or end. 

In this case,  is our only irrational number because it cannot be written as a simple fraction.

Example Question #22 : Understand The Difference Between Rational And Irrational Numbers: Ccss.Math.Content.8.Ns.A.1

Which of the following answer choices displays an irrational number?

 

Possible Answers:

Correct answer:

Explanation:

Our answer choices consist of two types of numbers: rational numbers and irrational numbers. In order to correctly answer this question, we need to know the difference between the two types of numbers. 

Rational numbers are numbers that we use most often, and can be written as a simple fraction. 

Irrational numbers cannot be written as fractions, and are numbers that have decimal places that never repeat or end. 

In this case,  is our only irrational number because it cannot be written as a simple fraction.

Example Question #22 : Understand The Difference Between Rational And Irrational Numbers: Ccss.Math.Content.8.Ns.A.1

Which of the following answer choices displays an irrational number? 

Possible Answers:

Correct answer:

Explanation:

Our answer choices consist of two types of numbers: rational numbers and irrational numbers. In order to correctly answer this question, we need to know the difference between the two types of numbers. 

Rational numbers are numbers that we use most often, and can be written as a simple fraction. 

Irrational numbers cannot be written as fractions, and are numbers that have decimal places that never repeat or end. 

In this case,  is our only irrational number because it cannot be written as a simple fraction.

Example Question #23 : Understand The Difference Between Rational And Irrational Numbers: Ccss.Math.Content.8.Ns.A.1

Which of the following answer choices displays an irrational number?

 

Possible Answers:

Correct answer:

Explanation:

Our answer choices consist of two types of numbers: rational numbers and irrational numbers. In order to correctly answer this question, we need to know the difference between the two types of numbers. 

Rational numbers are numbers that we use most often, and can be written as a simple fraction. 

Irrational numbers cannot be written as simple fractions, and are numbers that have decimal places that never repeat or end. 

In this case,  is our only irrational number because it cannot be written as a simple fraction.  

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