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

$\frac{\begin{array}[b]{r}60\\ \times\ 6\end{array}}{ \ \ \ \space}$

Possible Answers:

360

120

240

180

540

Correct answer:

360

Explanation:

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

$6\times0=0$

$6\times6=36$

$\frac{\begin{array}[b]{r}60\\ \times\ 6\end{array}}{ \ \space360}$

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Example Question #5 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Solve the following:

$\frac{\begin{array}[b]{r}70\\ \times\ 7\end{array}}{ \ \ \ \space}$

Possible Answers:

520

140

490

500

420

Correct answer:

490

Explanation:

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

$7\times0=0$

$7\times7=49$

$\frac{\begin{array}[b]{r}70\\ \times\ 7\end{array}}{ \ \space490}$

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Example Question #12 : How To Multiply Variables

$\frac{\begin{array}[b]{r}80\\ \times\ 8\end{array}}{ \ \ \ \space}$

Possible Answers:

160

640

480

680

440

Correct answer:

640

Explanation:

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

$8\times0=0$

$8\times8=64$

$\frac{\begin{array}[b]{r}80\\ \times\ 8\end{array}}{ \ \space640}$

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Example Question #21 : How To Multiply Variables

$\frac{\begin{array}[b]{r}90\\ \times\ 9\end{array}}{ \ \ \ \space}$

Possible Answers:

810

900

Correct answer:

810

Explanation:

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

$9\times0=0$

$9\times9=81$

$\frac{\begin{array}[b]{r}90\\ \times\ 9\end{array}}{ \ \space810}$

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Example Question #6 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

$\frac{\begin{array}[b]{r}20\\ \times\ 1\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$1\times0=0$

$1\times2=2$

$\frac{\begin{array}[b]{r}20\\ \times\ 1\end{array}}{ \ \ \space20}$

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Example Question #7 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

$\frac{\begin{array}[b]{r}30\\ \times\ 2\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$2\times0=0$

$2\times3=6$

$\frac{\begin{array}[b]{r}30\\ \times\ 2\end{array}}{ \ \ \space60}$

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Example Question #3092 : Numbers And Operations

$\frac{\begin{array}[b]{r}40\\ \times\ 3\end{array}}{ \ \ \ \space}$

Possible Answers:

120

110

Correct answer:

120

Explanation:

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

$3\times0=0$

$3\times4=12$

$\frac{\begin{array}[b]{r}40\\ \times\ 3\end{array}}{ \ \space120}$

Report an Error

Example Question #24 : How To Multiply Variables

$\frac{\begin{array}[b]{r}50\\ \times\ 4\end{array}}{ \ \ \ \space}$

Possible Answers:

210

220

170

200

150

Correct answer:

200

Explanation:

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

$4\times0=0$

$4\times5=20$

$\frac{\begin{array}[b]{r}50\\ \times\ 4\end{array}}{ \ \space200}$

Report an Error

Example Question #51 : Variables

$\frac{\begin{array}[b]{r}60\\ \times\ 5\end{array}}{ \ \ \ \space}$

Possible Answers:

300

350

200

250

150

Correct answer:

300

Explanation:

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

$5\times0=0$

$5\times6=30$

$\frac{\begin{array}[b]{r}60\\ \times\ 5\end{array}}{ \ \space300}$

Report an Error

Example Question #52 : Variables

$\frac{\begin{array}[b]{r}70\\ \times\ 6\end{array}}{ \ \ \ \space}$

Possible Answers:

420

380

480

400

360

Correct answer:

420

Explanation:

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

$6\times0=0$

$6\times7=42$

$\frac{\begin{array}[b]{r}70\\ \times\ 6\end{array}}{ \ \space420}$

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

Example Question #5 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Example Question #12 : How To Multiply Variables

Example Question #21 : How To Multiply Variables

Example Question #6 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Example Question #7 : Multiply One Digit Numbers By Multiples Of 10: Ccss.Math.Content.3.Nbt.A.3

Example Question #3092 : Numbers And Operations

Example Question #24 : How To Multiply Variables

Example Question #51 : Variables

Example Question #52 : Variables

All Common Core: 3rd Grade Math Resources

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