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Common Core: 3rd Grade Math : Understanding Place Value and Properties of Operations for Multi-digit Arithmetic

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

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All Common Core: 3rd Grade Math Resources

7 Diagnostic Tests 226 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #55 : Algebraic Concepts

$\frac{\begin{array}[b]{r}80\\ \times\ 7\end{array}}{ \ \ \ \space}$

Possible Answers:

590

570

580

560

600

Correct answer:

560

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$7\times0=0$

$7\times8=56$

$\frac{\begin{array}[b]{r}80\\ \times\ 7\end{array}}{ \ \space560}$

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Example Question #111 : Number & Operations In Base Ten

$\frac{\begin{array}[b]{r}90\\ \times\ 8\end{array}}{ \ \ \ \space}$

Possible Answers:

760

780

710

740

720

Correct answer:

720

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$8\times0=0$

$8\times9=72$

$\frac{\begin{array}[b]{r}90\\ \times\ 8\end{array}}{ \ \space720}$

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Example Question #17 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

$\frac{\begin{array}[b]{r}10\\ \times\ 9\end{array}}{ \ \ \ \space}$

Possible Answers:

100

Correct answer:

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$9\times0=0$

$9\times1=9$

$\frac{\begin{array}[b]{r}10\\ \times\ 9\end{array}}{ \ \ \space90}$

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Example Question #61 : Algebraic Concepts

$\frac{\begin{array}[b]{r}20\\ \times\ 8\end{array}}{ \ \ \ \space}$

Possible Answers:

180

140

190

120

160

Correct answer:

160

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$8\times0=0$

$8\times2=16$

$\frac{\begin{array}[b]{r}20\\ \times\ 8\end{array}}{ \ \space160}$

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Example Question #62 : Algebraic Concepts

$\frac{\begin{array}[b]{r}90\\ \times\ 7\end{array}}{ \ \ \ \space}$

Possible Answers:

640

630

650

670

660

Correct answer:

630

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$7\times0=0$

$7\times9=63$

$\frac{\begin{array}[b]{r}90\\ \times\ 7\end{array}}{ \ \space630}$

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Example Question #63 : Algebraic Concepts

$\frac{\begin{array}[b]{r}30\\ \times\ 1\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$1\times0=0$

$1\times3=3$

$\frac{\begin{array}[b]{r}30\\ \times\ 1\end{array}}{ \ \ \space30}$

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Example Question #31 : How To Multiply Variables

$\frac{\begin{array}[b]{r}40\\ \times\ 2\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$2\times0=0$

$2\times4=8$

$\frac{\begin{array}[b]{r}40\\ \times\ 2\end{array}}{ \ \ \ \space80}$

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Example Question #32 : How To Multiply Variables

$\frac{\begin{array}[b]{r}50\\ \times\ 3\end{array}}{ \ \ \ \space}$

Possible Answers:

160

190

150

170

180

Correct answer:

150

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$3\times0=0$

$3\times5=15$

$\frac{\begin{array}[b]{r}50\\ \times\ 3\end{array}}{ \ \space150}$

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Example Question #64 : Algebraic Concepts

$\frac{\begin{array}[b]{r}60\\ \times\ 4\end{array}}{ \ \ \ \space}$

Possible Answers:

240

200

210

230

220

Correct answer:

240

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$4\times0=0$

$4\times6=24$

$\frac{\begin{array}[b]{r}60\\ \times\ 4\end{array}}{ \ \space240}$

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Example Question #65 : Algebraic Concepts

$\frac{\begin{array}[b]{r}70\\ \times\ 5\end{array}}{ \ \ \ \space}$

Possible Answers:

420

300

410

350

400

Correct answer:

350

Explanation:

To solve this problem, we multiply by the ones position and the tens position.

$5\times0=0$

$5\times7=35$

$\frac{\begin{array}[b]{r}70\\ \times\ 5\end{array}}{ \ \space350}$

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All Common Core: 3rd Grade Math Resources

7 Diagnostic Tests 226 Practice Tests Question of the Day Flashcards Learn by Concept

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Common Core: 3rd Grade Math : Understanding Place Value and Properties of Operations for Multi-digit Arithmetic

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

All Common Core: 3rd Grade Math Resources

Example Questions

Example Question #55 : Algebraic Concepts

Example Question #111 : Number & Operations In Base Ten

Example Question #17 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Example Question #61 : Algebraic Concepts

Example Question #62 : Algebraic Concepts

Example Question #63 : Algebraic Concepts

Example Question #31 : How To Multiply Variables

Example Question #32 : How To Multiply Variables

Example Question #64 : Algebraic Concepts

Example Question #65 : Algebraic Concepts

All Common Core: 3rd Grade Math Resources

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