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Common Core: 3rd Grade Math : Number & Operations in Base Ten

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 #88 : Operations

$\frac{\begin{array}[b]{r}10\\ \times\ 8\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$8\times0=0$

$8\times1=8$

$\frac{\begin{array}[b]{r}10\\ \times\ 8\end{array}}{ \ \ \space80}$

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Example Question #51 : How To Multiply Variables

$\frac{\begin{array}[b]{r}40\\ \times\ 9\end{array}}{ \ \ \ \space}$

Possible Answers:

320

360

330

340

350

Correct answer:

360

Explanation:

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

$9\times0=0$

$9\times4=36$

$\frac{\begin{array}[b]{r}40\\ \times\ 9\end{array}}{ \ \space360}$

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Example Question #90 : Operations

$\frac{\begin{array}[b]{r}60\\ \times\ 1\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$1\times0=0$

$1\times6=6$

$\frac{\begin{array}[b]{r}60\\ \times\ 1\end{array}}{ \ \ \space60}$

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Example Question #91 : Variables

$\frac{\begin{array}[b]{r}70\\ \times\ 2\end{array}}{ \ \ \ \space}$

Possible Answers:

100

140

110

120

130

Correct answer:

140

Explanation:

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

$2\times0=0$

$2\times7=14$

$\frac{\begin{array}[b]{r}70\\ \times\ 2\end{array}}{ \ \space140}$

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Example Question #41 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

$\frac{\begin{array}[b]{r}80\\ \times\ 3\end{array}}{ \ \ \ \space}$

Possible Answers:

280

240

260

250

270

Correct answer:

240

Explanation:

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

$3\times0=0$

$3\times8=24$

$\frac{\begin{array}[b]{r}80\\ \times\ 3\end{array}}{ \ \space240}$

Report an Error

Example Question #42 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

$\frac{\begin{array}[b]{r}90\\ \times\ 4\end{array}}{ \ \ \ \space}$

Possible Answers:

360

350

330

370

340

Correct answer:

360

Explanation:

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

$4\times0=0$

$4\times9=36$

$\frac{\begin{array}[b]{r}90\\ \times\ 4\end{array}}{ \ \space360}$

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Example Question #94 : Variables

$\frac{\begin{array}[b]{r}10\\ \times\ 5\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$5\times0=0$

$5\times1=5$

$\frac{\begin{array}[b]{r}10\\ \times\ 5\end{array}}{ \ \ \space50}$

Report an Error

Example Question #95 : Variables

$\frac{\begin{array}[b]{r}20\\ \times\ 6\end{array}}{ \ \ \ \space}$

Possible Answers:

140

110

100

130

120

Correct answer:

120

Explanation:

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

$6\times0=0$

$6\times2=12$

$\frac{\begin{array}[b]{r}20\\ \times\ 6\end{array}}{ \ \space120}$

Report an Error

Example Question #91 : Isee Middle Level (Grades 7 8) Quantitative Reasoning

$\frac{\begin{array}[b]{r}40\\ \times\ 7\end{array}}{ \ \ \ \space}$

Possible Answers:

270

260

280

240

250

Correct answer:

280

Explanation:

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

$7\times0=0$

$7\times4=28$

$\frac{\begin{array}[b]{r}40\\ \times\ 7\end{array}}{ \ \space280}$

Report an Error

Example Question #451 : How To Multiply

$\frac{\begin{array}[b]{r}50\\ \times\ 8\end{array}}{ \ \ \ \space}$

Possible Answers:

430

440

410

400

420

Correct answer:

400

Explanation:

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

$8\times0=0$

$8\times5=40$

$\frac{\begin{array}[b]{r}50\\ \times\ 8\end{array}}{ \ \space400}$

Report an Error

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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 : Number & Operations in Base Ten

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

All Common Core: 3rd Grade Math Resources

Example Questions

Example Question #88 : Operations

Example Question #51 : How To Multiply Variables

Example Question #90 : Operations

Example Question #91 : Variables

Example Question #41 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Example Question #42 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Example Question #94 : Variables

Example Question #95 : Variables

Example Question #91 : Isee Middle Level (Grades 7 8) Quantitative Reasoning

Example Question #451 : How To Multiply

All Common Core: 3rd Grade Math Resources

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