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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 #341 : Grade 7

Solve:

$-2\times11$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times11=22$

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,

$-2\times11=-22$

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Example Question #342 : Grade 7

Solve:

$-2\times12$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$2\times12=24$

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,

$-2\times12=-24$

Report an Error

Example Question #351 : Grade 7

Solve:

$-3\times3$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times3=9$

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,

$-3\times3=-9$

Report an Error

Example Question #352 : Grade 7

Solve:

$-3\times4$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times4=12$

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,

$-3\times4=-12$

Report an Error

Example Question #353 : Grade 7

Solve:

$-3\times5$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times5=15$

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,

$-3\times5=-15$

Report an Error

Example Question #354 : Grade 7

Solve:

$-3\times6$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times6=18$

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,

$-3\times6=-18$

Report an Error

Example Question #355 : Grade 7

Solve:

$-3\times7$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times7=21$

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,

$-3\times7=-21$

Report an Error

Example Question #356 : Grade 7

Solve:

$-3\times8$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times8=24$

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,

$-3\times8=-24$

Report an Error

Example Question #357 : Grade 7

Solve:

$-3\times9$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times9=27$

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,

$-3\times9=-27$

Report an Error

Example Question #358 : Grade 7

Solve:

$-4\times7$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$4\times7=28$

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,

$-4\times7=-28$

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 #341 : Grade 7

Example Question #342 : Grade 7

Example Question #351 : Grade 7

Example Question #352 : Grade 7

Example Question #353 : Grade 7

Example Question #354 : Grade 7

Example Question #355 : Grade 7

Example Question #356 : Grade 7

Example Question #357 : Grade 7

Example Question #358 : Grade 7

All Common Core: 7th Grade Math Resources

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