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Common Core: 2nd Grade Math : Number & Operations in Base Ten

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

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All Common Core: 2nd Grade Math Resources

7 Diagnostic Tests 217 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #11 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}432\\ +\ 10\end{array}}{?}$

Possible Answers:

412

422

442

532

452

Correct answer:

442

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

2+0=2

3+1=4

4+0=4

$\frac{\begin{array}[b]{r}432\\ +\ 10\end{array}}{\ \ \space 442}$

Report an Error

Example Question #12 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}572\\ +\ 10\end{array}}{?}$

Possible Answers:

562

582

573

672

472

Correct answer:

582

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

2+0=2

7+1=8

5+0=5

$\frac{\begin{array}[b]{r}572\\ +\ 10\end{array}}{\ \ \space582}$

Report an Error

Example Question #121 : How To Add

$\frac{\begin{array}[b]{r}633\\ +\ 10\end{array}}{?}$

Possible Answers:

643

634

623

533

733

Correct answer:

643

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

3+0=3

3+1=4

$\frac{\begin{array}[b]{r}633\\ +\ 10\end{array}}{\ \ \space643}$

Report an Error

Example Question #123 : How To Add

$\frac{\begin{array}[b]{r}728\\ +\ 10\end{array}}{?}$

Possible Answers:

828

838

718

738

729

Correct answer:

738

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

8+0=8

2+1=3

7+0=7

$\frac{\begin{array}[b]{r}728\\ +\ 10\end{array}}{\ \ \space738}$

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Example Question #12 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}888\\ +\ 10\end{array}}{?}$

Possible Answers:

898

889

988

878

788

Correct answer:

898

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

8+0=8

8+1=9

8+0=8

$\frac{\begin{array}[b]{r}888\\ +\ 10\end{array}}{\ \ \space898}$

Report an Error

Example Question #125 : How To Add

$\frac{\begin{array}[b]{r}932\\ +\ 10\end{array}}{?}$

Possible Answers:

832

952

842

922

942

Correct answer:

942

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

2+0=2

3+1=4

9+0=9

$\frac{\begin{array}[b]{r}932\\ +\ 10\end{array}}{\ \ \space942}$

Report an Error

Example Question #13 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}321\\ +\ 10\end{array}}{?}$

Possible Answers:

331

341

431

311

421

Correct answer:

331

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

1+0=1

2+1=3

3+0=3

$\frac{\begin{array}[b]{r}321\\ +\ 10\end{array}}{\ \ \space331}$

Report an Error

Example Question #14 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

286+10=

Possible Answers:

276

287

396

296

386

Correct answer:

296

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

6+0=6

8+1=9

2+0=2

$\frac{\begin{array}[b]{r}286\\ +\ 10\end{array}}{\ \ \space296}$

Report an Error

Example Question #1092 : Number & Operations In Base Ten

$\frac{\begin{array}[b]{r}134\\ +\ 10\end{array}}{?}$

Possible Answers:

144

244

234

200

135

Correct answer:

144

Explanation:

When adding any number by 100 the only number that will change in your answer is the tens place.

4+0=4

3+1=4

1+0=1

$\frac{\begin{array}[b]{r}134\\ +\ 10\end{array}}{\ \ \space144}$

Report an Error

Example Question #1091 : Number & Operations In Base Ten

$\frac{\begin{array}[b]{r}629\\ +\ 10\end{array}}{?}$

Possible Answers:

639

729

619

630

649

Correct answer:

639

Explanation:

When adding any number by the only number that will change in your answer is the tens place.

9+0=9

2+1=3

6+0=6

$\frac{\begin{array}[b]{r}629\\ +\ 10\end{array}}{\ \ \space639}$

Report an Error

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All Common Core: 2nd Grade Math Resources

7 Diagnostic Tests 217 Practice Tests Question of the Day Flashcards Learn by Concept

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Common Core: 2nd Grade Math : Number & Operations in Base Ten

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

All Common Core: 2nd Grade Math Resources

Example Questions

Example Question #11 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #12 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #121 : How To Add

Example Question #123 : How To Add

Example Question #12 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #125 : How To Add

Example Question #13 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #14 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #1092 : Number & Operations In Base Ten

Example Question #1091 : Number & Operations In Base Ten

All Common Core: 2nd Grade Math Resources

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