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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 #42 : Operations

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

Possible Answers:

240

120

540

360

180

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 #43 : Operations

Solve the following:

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

Possible Answers:

490

500

140

520

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 #101 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

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

Possible Answers:

440

160

680

640

480

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 #51 : 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 #105 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

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

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 #106 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

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

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 #107 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

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

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 #52 : Variables

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

Possible Answers:

170

220

210

150

200

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 : Algebraic Concepts

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

Possible Answers:

250

350

300

200

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 #101 : Number & Operations In Base Ten

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

Possible Answers:

380

420

400

480

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 #42 : Operations

Example Question #43 : Operations

Example Question #101 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

Example Question #51 : Variables

Example Question #105 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

Example Question #106 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

Example Question #107 : Understanding Place Value And Properties Of Operations For Multi Digit Arithmetic

Example Question #52 : Variables

Example Question #51 : Algebraic Concepts

Example Question #101 : Number & Operations In Base Ten

All Common Core: 3rd Grade Math Resources

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