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Common Core: 7th Grade Math : Multiply Rational Numbers

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 #1 : Multiply Rational Numbers

Solve:

$-1\times3$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$1\times3=3$

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,

$-1\times3=-3$

Report an Error

Example Question #1 : Multiply Rational Numbers

Solve:

$-3\times10$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$3\times10=30$

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,

$-3\times10=-30$

Report an Error

Example Question #2 : Multiply Rational Numbers

Solve:

$-5\times11$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$5\times11=55$

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,

$-5\times11=-55$

Report an Error

Example Question #2 : Multiply Rational Numbers

Solve:

$-11\times-9$

Possible Answers:

Correct answer:

Explanation:

We know the following information:

$11\times9=99$

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,

$-11\times-9=99$

Report an Error

Example Question #3 : Multiply Rational Numbers

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 #4 : Multiply Rational Numbers

Solve the following:

$-12\times-12$

Possible Answers:

144

Correct answer:

144

Explanation:

We know the following information:

$12\times12=144$

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,

$-12\times-12=144$

Report an Error

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All Common Core: 7th Grade Math Resources

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Common Core: 7th Grade Math : Multiply Rational Numbers

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

All Common Core: 7th Grade Math Resources

Example Questions

Example Question #1 : Multiply Rational Numbers

Example Question #1 : Multiply Rational Numbers

Example Question #2 : Multiply Rational Numbers

Example Question #2 : Multiply Rational Numbers

Example Question #3 : Multiply Rational Numbers

Example Question #4 : Multiply Rational Numbers

All Common Core: 7th Grade Math Resources

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