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Common Core: 7th Grade Math : Interpret Products of Rational Numbers and Understand Properites of Operations: CCSS.Math.Content.7.NS.A.2a

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

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All Common Core: 7th Grade Math Resources

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Example Questions

Example Question #71 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-7\times-10$ $\displaystyle -7\times-10$

Possible Answers:

$\displaystyle 3$

$\displaystyle -17$

$\displaystyle -70$

$\displaystyle 17$

$\displaystyle 70$

Correct answer:

$\displaystyle 70$

Explanation:

We know the following information:

$7\times10=70$ $\displaystyle 7\times10=70$

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,

$-7\times-10=70$ $\displaystyle -7\times-10=70$

Report an Error

Example Question #72 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-7\times-11$ $\displaystyle -7\times-11$

Possible Answers:

$\displaystyle 4$

$\displaystyle -77$

$\displaystyle -4$

$\displaystyle -18$

$\displaystyle 77$

Correct answer:

$\displaystyle 77$

Explanation:

We know the following information:

$7\times11=77$ $\displaystyle 7\times11=77$

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,

$-7\times-11=77$ $\displaystyle -7\times-11=77$

Report an Error

Example Question #73 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-7\times-12$ $\displaystyle -7\times-12$

Possible Answers:

$\displaystyle -84$

$\displaystyle 5$

$\displaystyle -19$

$\displaystyle 19$

$\displaystyle 84$

Correct answer:

$\displaystyle 84$

Explanation:

We know the following information:

$7\times12=84$ $\displaystyle 7\times12=84$

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,

$-7\times-12=84$ $\displaystyle -7\times-12=84$

Report an Error

Example Question #74 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-8\times-3$ $\displaystyle -8\times-3$

Possible Answers:

$\displaystyle 24$

$\displaystyle -24$

$\displaystyle -11$

$\displaystyle -5$

$\displaystyle 5$

Correct answer:

$\displaystyle 24$

Explanation:

We know the following information:

$8\times3=24$ $\displaystyle 8\times3=24$

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,

$-8\times-3=24$ $\displaystyle -8\times-3=24$

Report an Error

Example Question #75 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-8\times-4$ $\displaystyle -8\times-4$

Possible Answers:

$\displaystyle 4$

$\displaystyle 32$

$\displaystyle 12$

$\displaystyle -12$

$\displaystyle -32$

Correct answer:

$\displaystyle 32$

Explanation:

We know the following information:

$8\times4=32$ $\displaystyle 8\times4=32$

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,

$-8\times-4=32$ $\displaystyle -8\times-4=32$

Report an Error

Example Question #76 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-8\times-5$ $\displaystyle -8\times-5$

Possible Answers:

$\displaystyle -3$

$\displaystyle 40$

$\displaystyle 13$

$\displaystyle -13$

$\displaystyle -40$

Correct answer:

$\displaystyle 40$

Explanation:

We know the following information:

$8\times5=40$ $\displaystyle 8\times5=40$

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,

$-8\times-5=40$ $\displaystyle -8\times-5=40$

Report an Error

Example Question #381 : Grade 7

Solve:

$-8\times-6$ $\displaystyle -8\times-6$

Possible Answers:

$\displaystyle 2$

$\displaystyle 14$

$\displaystyle -2$

$\displaystyle 48$

$\displaystyle -48$

Correct answer:

$\displaystyle 48$

Explanation:

We know the following information:

$8\times6=48$ $\displaystyle 8\times6=48$

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,

$-8\times-6=48$ $\displaystyle -8\times-6=48$

Report an Error

Example Question #382 : Grade 7

Solve:

$-8\times-7$ $\displaystyle -8\times-7$

Possible Answers:

$\displaystyle -1$

$\displaystyle -56$

$\displaystyle 56$

$\displaystyle -15$

$\displaystyle 15$

Correct answer:

$\displaystyle 56$

Explanation:

We know the following information:

$8\times7=56$ $\displaystyle 8\times7=56$

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,

$-8\times-7=56$ $\displaystyle -8\times-7=56$

Report an Error

Example Question #391 : Grade 7

Solve:

$-8\times-8$ $\displaystyle -8\times-8$

Possible Answers:

$\displaystyle -16$

$\displaystyle 64$

$\displaystyle -64$

$\displaystyle 0$

$\displaystyle 16$

Correct answer:

$\displaystyle 64$

Explanation:

We know the following information:

$8\times8=64$ $\displaystyle 8\times8=64$

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,

$-8\times-8=64$ $\displaystyle -8\times-8=64$

Report an Error

Example Question #392 : Grade 7

Solve:

$-8\times-9$ $\displaystyle -8\times-9$

Possible Answers:

$\displaystyle -1$

$\displaystyle -72$

$\displaystyle 72$

$\displaystyle -17$

$\displaystyle 1$

Correct answer:

$\displaystyle 72$

Explanation:

We know the following information:

$8\times9=72$ $\displaystyle 8\times9=72$

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,

$-8\times-9=72$ $\displaystyle -8\times-9=72$

Report an Error

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Common Core: 7th Grade Math : Interpret Products of Rational Numbers and Understand Properites of Operations: CCSS.Math.Content.7.NS.A.2a

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

All Common Core: 7th Grade Math Resources

Example Questions

Example Question #71 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #72 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #73 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #74 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #75 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #76 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #381 : Grade 7

Example Question #382 : Grade 7

Example Question #391 : Grade 7

Example Question #392 : Grade 7

All Common Core: 7th Grade Math Resources

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