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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

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

Example Questions

Example Question #161 : The Number System

Solve:

$-3\times5$ $\displaystyle -3\times5$

Possible Answers:

$\displaystyle -15$

$\displaystyle 2$

$\displaystyle 8$

$\displaystyle -2$

$\displaystyle -8$

Correct answer:

$\displaystyle -15$

Explanation:

We know the following information:

$3\times5=15$ $\displaystyle 3\times5=15$

However, the $\displaystyle -3$ 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,

$-3\times5=-15$ $\displaystyle -3\times5=-15$

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Example Question #162 : The Number System

Solve:

$-3\times6$ $\displaystyle -3\times6$

Possible Answers:

$\displaystyle 18$

$\displaystyle -18$

$\displaystyle -9$

$\displaystyle 9$

$\displaystyle 3$

Correct answer:

$\displaystyle -18$

Explanation:

We know the following information:

$3\times6=18$ $\displaystyle 3\times6=18$

However, the $\displaystyle -3$ 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,

$-3\times6=-18$ $\displaystyle -3\times6=-18$

Report an Error

Example Question #163 : The Number System

Solve:

$-3\times7$ $\displaystyle -3\times7$

Possible Answers:

$\displaystyle -10$

$\displaystyle 4$

$\displaystyle 10$

$\displaystyle -21$

$\displaystyle -4$

Correct answer:

$\displaystyle -21$

Explanation:

We know the following information:

$3\times7=21$ $\displaystyle 3\times7=21$

However, the $\displaystyle -3$ 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,

$-3\times7=-21$ $\displaystyle -3\times7=-21$

Report an Error

Example Question #41 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-3\times8$ $\displaystyle -3\times8$

Possible Answers:

$\displaystyle -11$

$\displaystyle 24$

$\displaystyle -24$

$\displaystyle 5$

$\displaystyle 11$

Correct answer:

$\displaystyle -24$

Explanation:

We know the following information:

$3\times8=24$ $\displaystyle 3\times8=24$

However, the $\displaystyle -3$ 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,

$-3\times8=-24$ $\displaystyle -3\times8=-24$

Report an Error

Example Question #165 : The Number System

Solve:

$-3\times9$ $\displaystyle -3\times9$

Possible Answers:

$\displaystyle 12$

$\displaystyle -27$

$\displaystyle 6$

$\displaystyle 27$

$\displaystyle -12$

Correct answer:

$\displaystyle -27$

Explanation:

We know the following information:

$3\times9=27$ $\displaystyle 3\times9=27$

However, the $\displaystyle -3$ 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,

$-3\times9=-27$ $\displaystyle -3\times9=-27$

Report an Error

Example Question #166 : The Number System

Solve:

$-4\times7$ $\displaystyle -4\times7$

Possible Answers:

$\displaystyle 11$

$\displaystyle 28$

$\displaystyle -11$

$\displaystyle 3$

$\displaystyle -28$

Correct answer:

$\displaystyle -28$

Explanation:

We know the following information:

$4\times7=28$ $\displaystyle 4\times7=28$

However, the $\displaystyle -4$ 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,

$-4\times7=-28$ $\displaystyle -4\times7=-28$

Report an Error

Example Question #41 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-4\times8$ $\displaystyle -4\times8$

Possible Answers:

$\displaystyle -12$

$\displaystyle 32$

$\displaystyle -4$

$\displaystyle -32$

$\displaystyle 4$

Correct answer:

$\displaystyle -32$

Explanation:

We know the following information:

$4\times8=32$ $\displaystyle 4\times8=32$

However, the $\displaystyle -4$ 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,

$-4\times8=-32$ $\displaystyle -4\times8=-32$

Report an Error

Example Question #41 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-4\times9$ $\displaystyle -4\times9$

Possible Answers:

$\displaystyle 13$

$\displaystyle -36$

$\displaystyle -5$

$\displaystyle 5$

$\displaystyle -13$

Correct answer:

$\displaystyle -36$

Explanation:

We know the following information:

$4\times9=36$ $\displaystyle 4\times9=36$

However, the $\displaystyle -4$ 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,

$-4\times9=-36$ $\displaystyle -4\times9=-36$

Report an Error

Example Question #171 : The Number System

Solve:

$-4\times10$ $\displaystyle -4\times10$

Possible Answers:

$\displaystyle -6$

$\displaystyle -14$

$\displaystyle -40$

$\displaystyle 6$

$\displaystyle 14$

Correct answer:

$\displaystyle -40$

Explanation:

We know the following information:

$4\times10=40$ $\displaystyle 4\times10=40$

However, the $\displaystyle -4$ 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,

$-4\times10=-40$ $\displaystyle -4\times10=-40$

Report an Error

Example Question #49 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Solve:

$-4\times11$ $\displaystyle -4\times11$

Possible Answers:

$\displaystyle -44$

$\displaystyle 15$

$\displaystyle 44$

$\displaystyle 7$

$\displaystyle -15$

Correct answer:

$\displaystyle -44$

Explanation:

We know the following information:

$4\times6=11$ $\displaystyle 4\times6=11$

However, the $\displaystyle -4$ 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,

$-4\times11=-44$ $\displaystyle -4\times11=-44$

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 #161 : The Number System

Example Question #162 : The Number System

Example Question #163 : The Number System

Example Question #41 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #165 : The Number System

Example Question #166 : The Number System

Example Question #41 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #41 : Interpret Products Of Rational Numbers And Understand Properites Of Operations: Ccss.Math.Content.7.Ns.A.2a

Example Question #171 : The Number System

Example Question #49 : 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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