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Common Core: 7th Grade Math : The Number System

Study concepts, example questions & explanations for Common Core: 7th Grade Math

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All Common Core: 7th Grade Math Resources

7 Diagnostic Tests 110 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #201 : The Number System

Solve:

$-8\times-6$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$8\times6=48$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-8\times-6=48$

Report an Error

Example Question #78 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-8\times-7$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$8\times7=56$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-8\times-7=56$

Report an Error

Example Question #201 : The Number System

Solve:

$-8\times-8$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$8\times8=64$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-8\times-8=64$

Report an Error

Example Question #392 : Grade 7

Solve:

$-8\times-9$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$8\times9=72$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-8\times-9=72$

Report an Error

Example Question #81 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-9\times-9$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$9\times9=81$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-9\times-9=81$

Report an Error

Example Question #201 : The Number System

Solve:

$-9\times-10$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$9\times10=90$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-9\times-10=90$

Report an Error

Example Question #202 : The Number System

Solve:

$-9\times-11$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$9\times11=99$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-9\times-11=99$

Report an Error

Example Question #396 : Grade 7

Solve:

$-9\times-12$

Possible Answers:

108

Correct answer:

108

Explanation:

We know the following information:

$9\times12=108$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-9\times-12=108$

Report an Error

Example Question #202 : The Number System

Solve:

$-9\times-1$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$9\times1=9$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-9\times-1=9$

Report an Error

Example Question #86 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-9\times-2$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$9\times2=18$

In this particular case, do the negative numbers change our answer? There are a couple of rules that we need to remember when multiplying with negative numbers to help us answer this question:

A negative number multiplied by a positive number will always equal a negative number
A negative number multiplied by a negative number will always equal a positive number

Thus,

$-9\times-2=18$

Report an Error

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All Common Core: 7th Grade Math Resources

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Common Core: 7th Grade Math : The Number System

Study concepts, example questions & explanations for Common Core: 7th Grade Math

All Common Core: 7th Grade Math Resources

Example Questions

Example Question #201 : The Number System

Example Question #78 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #201 : The Number System

Example Question #392 : Grade 7

Example Question #81 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #201 : The Number System

Example Question #202 : The Number System

Example Question #396 : Grade 7

Example Question #202 : The Number System

Example Question #86 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

All Common Core: 7th Grade Math Resources

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