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Common Core: 3rd Grade Math : Common Core Math: Grade 3

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 #4782 : Numbers And Operations

What is 565 rounded to the nearest ten?

Possible Answers:

600

570

560

400

500

Correct answer:

570

Explanation:

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is or greater, we round up. If the number in the ones place is or less, we round down. When we round up, the number in the tens place increases by . The numbers to the right of the tens place become and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become and the numbers to the left of the tens place stay the same.

In this case, is equal to so our rounded number is 570.

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Example Question #172 : How To Find The Part From The Whole

What is 511 rounded to the nearest ten?

Possible Answers:

520

510

500

610

600

Correct answer:

510

Explanation:

In this case, is less than so our rounded number is 510.

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Example Question #173 : How To Find The Part From The Whole

What is 634 rounded to the nearest ten?

Possible Answers:

720

700

630

600

620

Correct answer:

630

Explanation:

In this case, is less than so our rounded number is 630.

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Example Question #174 : How To Find The Part From The Whole

What is 394 rounded to the nearest ten?

Possible Answers:

380

200

300

390

400

Correct answer:

390

Explanation:

In this case, is less than so our rounded number is 390.

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Example Question #41 : Operations

$\frac{\begin{array}[b]{r}10\\ \times\ 1\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$1\times0=0$

$1\times1=1$

$\frac{\begin{array}[b]{r}10\\ \times\ 1\end{array}}{ \ \ \space10}$

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Example Question #42 : Operations

$\frac{\begin{array}[b]{r}20\\ \times\ 2\end{array}}{ \ \ \ \space}$

Possible Answers:

Correct answer:

Explanation:

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

$2\times0=0$

$2\times2=4$

$\frac{\begin{array}[b]{r}20\\ \times\ 2\end{array}}{ \ \ \space40}$

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Example Question #11 : How To Multiply Variables

$\frac{\begin{array}[b]{r}40\\ \times\ 4\end{array}}{ \ \ \ \space}$

Possible Answers:

120

160

180

Correct answer:

160

Explanation:

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

$4\times0=0$

$4\times4=16$

$\frac{\begin{array}[b]{r}40\\ \times\ 4\end{array}}{ \ \space160}$

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Example Question #891 : Common Core Math: Grade 3

$\frac{\begin{array}[b]{r}50\\ \times\ 5\end{array}}{ \ \ \ \space}$

Possible Answers:

250

110

Correct answer:

250

Explanation:

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

$5\times0=0$

$5\times5=25$

$\frac{\begin{array}[b]{r}50\\ \times\ 5\end{array}}{ \ \space250}$

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Example Question #44 : Operations

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

Possible Answers:

540

360

240

180

120

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 #45 : Operations

Solve the following:

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

Possible Answers:

140

500

520

420

490

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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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 : Common Core Math: Grade 3

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

All Common Core: 3rd Grade Math Resources

Example Questions

Example Question #4782 : Numbers And Operations

Example Question #172 : How To Find The Part From The Whole

Example Question #173 : How To Find The Part From The Whole

Example Question #174 : How To Find The Part From The Whole

Example Question #41 : Operations

Example Question #42 : Operations

Example Question #11 : How To Multiply Variables

Example Question #891 : Common Core Math: Grade 3

Example Question #44 : Operations

Example Question #45 : Operations

All Common Core: 3rd Grade Math Resources

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