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

$\frac{\begin{array}[b]{r}80\\ \times\ 6\end{array}}{ \ \ \ \space}$

Possible Answers:

460

440

450

480

470

Correct answer:

480

Explanation:

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

$6\times0=0$

$6\times8=48$

$\frac{\begin{array}[b]{r}80\\ \times\ 6\end{array}}{ \ \space480}$

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Example Question #121 : Number & Operations In Base Ten

$\frac{\begin{array}[b]{r}10\\ \times\ 7\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$7\times0=0$

$7\times1=7$

$\frac{\begin{array}[b]{r}10\\ \times\ 7\end{array}}{ \ \ \space70}$

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Example Question #122 : Number & Operations In Base Ten

$\frac{\begin{array}[b]{r}30\\ \times\ 8\end{array}}{ \ \ \ \space}$

Possible Answers:

260

250

280

240

270

Correct answer:

240

Explanation:

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

$8\times0=0$

$8\times3=24$

$\frac{\begin{array}[b]{r}30\\ \times\ 8\end{array}}{ \ \space240}$

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Example Question #41 : How To Multiply Variables

$\frac{\begin{array}[b]{r}20\\ \times\ 9\end{array}}{ \ \ \ \space}$

Possible Answers:

190

160

170

180

150

Correct answer:

180

Explanation:

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

$9\times0=0$

$9\times2=18$

$\frac{\begin{array}[b]{r}20\\ \times\ 9\end{array}}{ \ \space180}$

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Example Question #42 : How To Multiply Variables

$\frac{\begin{array}[b]{r}40\\ \times\ 1\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$1\times0=0$

$1\times4=4$

$\frac{\begin{array}[b]{r}40\\ \times\ 1\end{array}}{ \ \ \space40}$

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Example Question #43 : How To Multiply Variables

$\frac{\begin{array}[b]{r}50\\ \times\ 2\end{array}}{ \ \ \ \space}$

Possible Answers:

100

Correct answer:

100

Explanation:

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

$2\times0=0$

$2\times5=10$

$\frac{\begin{array}[b]{r}50\\ \times\ 2\end{array}}{ \ \space100}$

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Example Question #44 : How To Multiply Variables

$\frac{\begin{array}[b]{r}60\\ \times\ 3\end{array}}{ \ \ \ \space}$

Possible Answers:

170

150

190

160

180

Correct answer:

180

Explanation:

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

$3\times0=0$

$3\times6=18$

$\frac{\begin{array}[b]{r}60\\ \times\ 3\end{array}}{ \ \space180}$

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Example Question #45 : How To Multiply Variables

$\frac{\begin{array}[b]{r}70\\ \times\ 4\end{array}}{ \ \ \ \space}$

Possible Answers:

310

300

280

290

370

Correct answer:

280

Explanation:

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

$4\times0=0$

$4\times7=28$

$\frac{\begin{array}[b]{r}70\\ \times\ 4\end{array}}{ \ \space280}$

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Example Question #46 : How To Multiply Variables

$\frac{\begin{array}[b]{r}80\\ \times\ 5\end{array}}{ \ \ \ \space}$

Possible Answers:

410

400

430

420

440

Correct answer:

400

Explanation:

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

$5\times0=0$

$5\times8=40$

$\frac{\begin{array}[b]{r}80\\ \times\ 5\end{array}}{ \ \space400}$

Report an Error

Example Question #47 : How To Multiply Variables

$\frac{\begin{array}[b]{r}90\\ \times\ 6\end{array}}{ \ \ \ \space}$

Possible Answers:

500

540

530

520

510

Correct answer:

540

Explanation:

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

$6\times0=0$

$6\times9=54$

$\frac{\begin{array}[b]{r}90\\ \times\ 6\end{array}}{ \ \space540}$

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

Example Question #121 : Number & Operations In Base Ten

Example Question #122 : Number & Operations In Base Ten

Example Question #41 : How To Multiply Variables

Example Question #42 : How To Multiply Variables

Example Question #43 : How To Multiply Variables

Example Question #44 : How To Multiply Variables

Example Question #45 : How To Multiply Variables

Example Question #46 : How To Multiply Variables

Example Question #47 : How To Multiply Variables

All Common Core: 3rd Grade Math Resources

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