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Common Core: 2nd Grade Math : Mentally Add and Subtract 10 or 100 to a Given Number : CCSS.Math.Content.2.NBT.B.8

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

$\frac{\begin{array}[b]{r}428\\ +\ 100\end{array}}{?}$

Possible Answers:

500

528

628

328

438

Correct answer:

528

Explanation:

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

8+0=8

2+0=2

4+1=5

$\frac{\begin{array}[b]{r}428\\ +\ 100\end{array}}{\ \ \ \space528}$

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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

$\frac{\begin{array}[b]{r}562\\ +\ 100\end{array}}{?}$

Possible Answers:

662

600

462

500

562

Correct answer:

662

Explanation:

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

2+0=2

6+0=6

5+1=6

$\frac{\begin{array}[b]{r}562\\ +\ 100\end{array}}{\ \ \ \space662}$

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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

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

Possible Answers:

532

442

422

412

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

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

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Example Question #14 : 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

472

573

672

582

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

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

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Example Question #1092 : Number & Operations In Base Ten

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

Possible Answers:

533

623

733

643

634

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

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

Possible Answers:

838

718

738

729

828

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

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

Report an Error

Example Question #16 : 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:

878

898

889

788

988

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

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

Possible Answers:

942

832

842

952

922

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

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

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Example Question #1093 : Number & Operations In Base Ten

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

Possible Answers:

331

311

431

341

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

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

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Example Question #1094 : Number & Operations In Base Ten

286+10=

Possible Answers:

396

386

287

296

276

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

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

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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 : Mentally Add and Subtract 10 or 100 to a Given Number : CCSS.Math.Content.2.NBT.B.8

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 #12 : 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 #15 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #16 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #17 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #1093 : Number & Operations In Base Ten

Example Question #1094 : Number & Operations In Base Ten

All Common Core: 2nd Grade Math Resources

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