Common Core: 5th Grade Math : Common Core Math: Grade 5

Study concepts, example questions & explanations for Common Core: 5th Grade Math

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Example Questions

Example Question #311 : Common Core Math: Grade 5

What is \(\displaystyle 7\times10^2\) in standard form? 

Possible Answers:

\(\displaystyle 700\)

\(\displaystyle 700\textup,000\)

\(\displaystyle 7\textup,000\)

\(\displaystyle 70\textup,000\)

\(\displaystyle 70\)

Correct answer:

\(\displaystyle 700\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 2\) power, we move our decimal over \(\displaystyle 2\) places to the right. 

\(\displaystyle 7.\rightarrow 700.\)

Example Question #91 : Explain Patterns When Multiplying By A Power Of 10: Ccss.Math.Content.5.Nbt.A.2

What is \(\displaystyle 6\times10^5\) in standard form? 

Possible Answers:

\(\displaystyle 600\)

\(\displaystyle 600\textup,000\)

\(\displaystyle 60\textup,000\)

\(\displaystyle 6\textup,000\)

\(\displaystyle 60\)

Correct answer:

\(\displaystyle 600\textup,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 5\) power, we move our decimal over \(\displaystyle 5\) places to the right. 

\(\displaystyle 6.\rightarrow 600000.\)

Example Question #312 : Common Core Math: Grade 5

What is \(\displaystyle 5\times10^4\) in standard form? 

Possible Answers:

\(\displaystyle 500\textup,000\)

\(\displaystyle 50\textup,000\)

\(\displaystyle 50\)

\(\displaystyle 5\textup,000\)

\(\displaystyle 500\)

Correct answer:

\(\displaystyle 50\textup,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 4\) power, we move our decimal over \(\displaystyle 4\) places to the right. 

\(\displaystyle 5.\rightarrow 50000.\)

Example Question #311 : Common Core Math: Grade 5

What is \(\displaystyle 4\times10^8\) in standard form? 

Possible Answers:

\(\displaystyle 4\textup,000\textup,000\)

\(\displaystyle 400\textup,000\)

\(\displaystyle 40\textup,000\textup,000\)

\(\displaystyle 40\textup,000\)

\(\displaystyle 400\textup,000\textup,000\)

Correct answer:

\(\displaystyle 400\textup,000\textup,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 8\) power, we move our decimal over \(\displaystyle 8\) places to the right. 

\(\displaystyle 4.\rightarrow 400000000.\) 

Example Question #312 : Common Core Math: Grade 5

What is \(\displaystyle 1\times10^2\) in standard form?

Possible Answers:

\(\displaystyle 100\textup,000\)

\(\displaystyle 10\)

\(\displaystyle 1\textup,000\)

\(\displaystyle 10\textup,000\)

\(\displaystyle 100\)

Correct answer:

\(\displaystyle 100\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 2\) power, we move our decimal over \(\displaystyle 2\) places to the right. 

\(\displaystyle 1.\rightarrow 100.\)

Example Question #313 : Common Core Math: Grade 5

What is \(\displaystyle 3\times10^7\) in standard form? 

Possible Answers:

\(\displaystyle 30\textup,000\)

\(\displaystyle 300\)

\(\displaystyle 3\textup,000\)

\(\displaystyle 3\textup,000\textup,000\)

\(\displaystyle 30\textup,000\textup,000\)

Correct answer:

\(\displaystyle 30\textup,000\textup,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 7\) power, we move our decimal over \(\displaystyle 7\) places to the right. 

\(\displaystyle 3.\rightarrow 30000000.\)

Example Question #92 : Explain Patterns When Multiplying By A Power Of 10: Ccss.Math.Content.5.Nbt.A.2

What is \(\displaystyle 2\times10^3\) in standard form? 

Possible Answers:

\(\displaystyle 2\texutp,000\)

\(\displaystyle 200\)

\(\displaystyle 20\)

\(\displaystyle 20\texutp,000\)

\(\displaystyle 200\texutp,000\)

Correct answer:

\(\displaystyle 2\texutp,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 3\) power, we move our decimal over \(\displaystyle 3\) places to the right. 

\(\displaystyle 2.\rightarrow 2000.\)

Example Question #131 : Number & Operations In Base Ten

What is \(\displaystyle 5.7\times10^1\) in standard form? 

Possible Answers:

\(\displaystyle 57\textup,000\)

\(\displaystyle 570\)

\(\displaystyle 570\textup,000\)

\(\displaystyle 57\)

\(\displaystyle 5\textup,700\)

Correct answer:

\(\displaystyle 57\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 1\) power, we move our decimal over \(\displaystyle 1\) place to the right. 

\(\displaystyle 5.7\rightarrow 57.\)

Example Question #132 : Number & Operations In Base Ten

What is \(\displaystyle 2.4\times10^7\) in standard form? 

Possible Answers:

\(\displaystyle 240\textup,000\textup,000\)

\(\displaystyle 24\textup,000\)

\(\displaystyle 2\textup,400\)

\(\displaystyle 24\textup,000\textup,000\)

\(\displaystyle 240\textup,000\)

Correct answer:

\(\displaystyle 24\textup,000\textup,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 7\) power, we move our decimal over \(\displaystyle 7\) places to the right. 

\(\displaystyle 2.4\rightarrow 24000000.\)

Example Question #314 : Common Core Math: Grade 5

What is \(\displaystyle 3.8\times10^5\) in standard form? 

Possible Answers:

\(\displaystyle 38\)

\(\displaystyle 380\)

\(\displaystyle 380\textup,000\)

\(\displaystyle 38\textup,000\)

\(\displaystyle 3\textup,800\)

Correct answer:

\(\displaystyle 380\textup,000\)

Explanation:

The power of \(\displaystyle 10\) tells us how to move our decimal. Because we have a positive \(\displaystyle 5\) power, we move our decimal over \(\displaystyle 5\) places to the right. 

\(\displaystyle 3.8\rightarrow 380000.\)

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