Common Core: 8th Grade Math : Compare the Size of Irrational Numbers and Place them on a Number Line: CCSS.Math.Content.8.NS.A.2

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

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Example Questions

Example Question #11 : Compare The Size Of Irrational Numbers And Place Them On A Number Line: Ccss.Math.Content.8.Ns.A.2

Which point on the number line best represents \(\displaystyle \sqrt{81}?\)

1

Possible Answers:

L

I

K

J

Correct answer:

K

Explanation:

To solve this problem, we first need to know what number \(\displaystyle \sqrt{81}\) represents:

\(\displaystyle 9\)

We are looking for a point on the number line that is on \(\displaystyle 9\). Based on the number line provided, point K is the best representation of \(\displaystyle \sqrt{81}\)

Example Question #12 : Compare The Size Of Irrational Numbers And Place Them On A Number Line: Ccss.Math.Content.8.Ns.A.2

Which point on the number line best represents \(\displaystyle \pi?\)

1

Possible Answers:

B

C

A

D

Correct answer:

C

Explanation:

To solve this problem, we first need to know what number the symbol \(\displaystyle \pi\) represents:

\(\displaystyle \pi=3.14...\) 

We are looking for a point on the number line that is between \(\displaystyle 3\) and \(\displaystyle 4\), but much closer to \(\displaystyle 3\). Based on the number line provided, point C is the best representation of \(\displaystyle \pi\)

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