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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 #151 : The Number System

Solve:

$-1\times10$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$1\times10=10$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-1\times10=-10$

Report an Error

Example Question #152 : The Number System

Solve:

$-1\times11$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$1\times11=11$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-1\times11=-11$

Report an Error

Example Question #151 : The Number System

Solve:

$-1\times12$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$1\times12=12$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-1\times12=-12$

Report an Error

Example Question #152 : The Number System

Solve:

$-1\times1$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$1\times1=1$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-1\times1=-1$

Report an Error

Example Question #153 : The Number System

Solve:

$-1\times2$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$1\times2=2$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-1\times2=-2$

Report an Error

Example Question #154 : The Number System

Solve:

$-2\times6$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times6=12$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-2\times6=-12$

Report an Error

Example Question #155 : The Number System

Solve:

$-2\times7$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times7=14$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-2\times7=-14$

Report an Error

Example Question #156 : The Number System

Solve:

$-2\times8$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times8=16$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-2\times8=-16$

Report an Error

Example Question #157 : The Number System

Solve:

$-2\times9$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times9=18$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-2\times9=-18$

Report an Error

Example Question #158 : The Number System

Solve:

$-2\times10$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times10=20$

However, the changes our answer, in this particular case. There are a couple of rules that we need to remember when multiplying with negative numbers:

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,

$-2\times10=-20$

Report an Error

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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 #151 : The Number System

Example Question #152 : The Number System

Example Question #151 : The Number System

Example Question #152 : The Number System

Example Question #153 : The Number System

Example Question #154 : The Number System

Example Question #155 : The Number System

Example Question #156 : The Number System

Example Question #157 : The Number System

Example Question #158 : The Number System

All Common Core: 7th Grade Math Resources

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