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

Solve the following:

$\frac{\begin{array}[b]{r}432\\ +\ 100\end{array}}{ }$

Possible Answers:

332

532

500

442

300

Correct answer:

532

Explanation:

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

2+0=2

3+0=3

4+1=5

$\frac{\begin{array}[b]{r}432\\ +\ 100\end{array}}{\ \ \ \space 532}$

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

$\frac{\begin{array}[b]{r}349\\ +\ 100\end{array}}{?}$

Possible Answers:

200

249

449

359

400

Correct answer:

449

Explanation:

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

9+0=9

4+0=4

3+1=4

$\frac{\begin{array}[b]{r}349\\ +\ 100\end{array}}{\ \ \ \space449}$

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Example Question #3 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}222\\ +\ 100\end{array}}{?}$

Possible Answers:

232

100

322

300

200

Correct answer:

322

Explanation:

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

2+0=2

2+1=3

$\frac{\begin{array}[b]{r}222\\ +\ 100\end{array}}{\ \ \ \space322}$

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Example Question #4 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}587\\ +\ 100\end{array}}{?}$

Possible Answers:

597

600

500

687

587

Correct answer:

687

Explanation:

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

7+0=7

8+0=8

5+1=6

$\frac{\begin{array}[b]{r}587\\ +\ 100\end{array}}{\ \ \ \space687}$

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Example Question #972 : Operations

$\frac{\begin{array}[b]{r}642\\ +\ 100\end{array}}{?}$

Possible Answers:

442

652

742

842

500

Correct answer:

742

Explanation:

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

2+0=2

4+0=4

6+1=

$\frac{\begin{array}[b]{r}642\\ +\ 100\end{array}}{\ \ \ \space742}$

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Example Question #981 : Operations

$\frac{\begin{array}[b]{r}789\\ +\ 100\end{array}}{?}$

Possible Answers:

989

689

800

799

889

Correct answer:

889

Explanation:

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

9+0=9

8+0=8

7+1=8

$\frac{\begin{array}[b]{r}789\\ +\ 100\end{array}}{\ \ \ \space889}$

Report an Error

Example Question #5 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}867\\ +\ 100\end{array}}{?}$

Possible Answers:

800

900

967

767

877

Correct answer:

967

Explanation:

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

7+0=7

6+0=6

8+1=9

$\frac{\begin{array}[b]{r}867\\ +\ 100\end{array}}{\ \ \ \space967}$

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Example Question #6 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

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

Possible Answers:

100

110

300

200

Correct answer:

200

Explanation:

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

0+0=0

1+1=2

$\frac{\begin{array}[b]{r}100\\ +\ 100\end{array}}{\ \ \ \space200}$

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Example Question #7 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

$\frac{\begin{array}[b]{r}175\\ +\ 100\end{array}}{?}$

Possible Answers:

185

175

275

375

Correct answer:

275

Explanation:

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

5+0=5

7+0=7

1+1=2

$\frac{\begin{array}[b]{r}175\\ +\ 100\end{array}}{\ \ \ \space275}$

Report an Error

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

$\frac{\begin{array}[b]{r}386\\ +\ 100\end{array}}{?}$

Possible Answers:

586

400

286

486

396

Correct answer:

486

Explanation:

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

6+0=6

8+0=8

3+1=4

$\frac{\begin{array}[b]{r}386\\ +\ 100\end{array}}{\ \ \ \space486}$

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All Common Core: 2nd Grade Math Resources

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

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

Example Question #3 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #4 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #972 : Operations

Example Question #981 : Operations

Example Question #5 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #6 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

Example Question #7 : Mentally Add And Subtract 10 Or 100 To A Given Number : Ccss.Math.Content.2.Nbt.B.8

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

All Common Core: 2nd Grade Math Resources

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