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Common Core: 2nd Grade Math : Mentally Add and Subtract Within 20: CCSS.Math.Content.2.OA.B.2

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 #1702 : Numbers And Operations

$\frac{\begin{array}[b]{r}4\\ +\ 6\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

4,5,6,7,8,9,10

$\frac{\begin{array}[b]{r}4\\ +\ 6\end{array}}{ \ \ \space10}$

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Example Question #638 : How To Add

$\frac{\begin{array}[b]{r}6\\ +\ 7\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

6,7,8,9,10,11,12,13

$\frac{\begin{array}[b]{r}6\\ +\ 7\end{array}}{ \ \ \space13}$

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Example Question #641 : How To Add

$\frac{\begin{array}[b]{r}11\\ +\ 7\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

11,12,13,14,15,16,17,18

$\frac{\begin{array}[b]{r}11\\ +\ 7\end{array}}{ \ \ \space18}$

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Example Question #642 : How To Add

$\frac{\begin{array}[b]{r}18\\ +\ 2\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

18,19,20

$\frac{\begin{array}[b]{r}18\\ +\ 2\end{array}}{ \ \ \space20}$

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Example Question #331 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}12\\ +\ 6\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

12,13,14,15,16,17,18

$\frac{\begin{array}[b]{r}12\\ +\ 6\end{array}}{ \ \ \space18}$

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Example Question #644 : How To Add

$\frac{\begin{array}[b]{r}13\\ +\ 7\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

13,14,15,16,17,18,19,20

$\frac{\begin{array}[b]{r}13\\ +\ 7\end{array}}{ \ \ \space20}$

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Example Question #645 : How To Add

$\frac{\begin{array}[b]{r}7\\ +\ 8\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

7,8,9,10,11,12,13,14,15

$\frac{\begin{array}[b]{r}7\\ +\ 8\end{array}}{ \ \ \space15}$

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Example Question #646 : How To Add

$\frac{\begin{array}[b]{r}2\\ +\ 9\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

2,3,4,5,6,7,8,9,10,11

$\frac{\begin{array}[b]{r}2\\ +\ 9\end{array}}{ \ \ \space11}$

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Example Question #647 : How To Add

$\frac{\begin{array}[b]{r}11\\ +\ 8\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

11,12,13,14,15,16,17,18,19

$\frac{\begin{array}[b]{r}11\\ +\ 8\end{array}}{ \ \ \space19}$

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Example Question #332 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}3\\ +\ 10\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up .

3,4,5,6,7,8,9,10,11,12,13

$\frac{\begin{array}[b]{r}3\\ +\ 10\end{array}}{ \ \ \space13}$

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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 Within 20: CCSS.Math.Content.2.OA.B.2

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

All Common Core: 2nd Grade Math Resources

Example Questions

Example Question #1702 : Numbers And Operations

Example Question #638 : How To Add

Example Question #641 : How To Add

Example Question #642 : How To Add

Example Question #331 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #644 : How To Add

Example Question #645 : How To Add

Example Question #646 : How To Add

Example Question #647 : How To Add

Example Question #332 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

All Common Core: 2nd Grade Math Resources

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