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Common Core: 2nd Grade Math : Common Core Math: Grade 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 #211 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}6\\ -\ 2\end{array}}{ \ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

6,5,4

$\frac{\begin{array}[b]{r}6\\ -\ 2\end{array}}{ \ \ \ \space 4}$

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Example Question #211 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

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

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

7, 6, 5, 4, 3, 2, 1

$\frac{\begin{array}[b]{r}7\\ -\ 6\end{array}}{ \ \ \ \space 1}$

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Example Question #211 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}6\\ -\ 1\end{array}}{ \ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

6,5

$\frac{\begin{array}[b]{r}6\\ -\ 1\end{array}}{ \ \ \ \space 5}$

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Example Question #1873 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}10\\ -\ 7\end{array}}{ \ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

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

$\frac{\begin{array}[b]{r}10\\ -\ 7\end{array}}{ \ \ \ \space 3}$

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Example Question #212 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}12\\ -\ 9\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

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

$\frac{\begin{array}[b]{r}12\\ -\ 9\end{array}}{ \ \ \ \space 3}$

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Example Question #213 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}13\\ -\ 4\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

13, 12, 11, 10, 9

$\frac{\begin{array}[b]{r}13\\ -\ 4\end{array}}{ \ \ \ \space 9}$

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Example Question #1871 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}14\\ -\ 2\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

14,13,12

$\frac{\begin{array}[b]{r}14\\ -\ 2\end{array}}{ \ \ \space 12}$

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Example Question #222 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}15\\ -\ 8\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

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

$\frac{\begin{array}[b]{r}15\\ -\ 8\end{array}}{ \ \ \ \space 7}$

Report an Error

Example Question #1871 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}16\\ -\ 12\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4

$\frac{\begin{array}[b]{r}16\\ -\ 12\end{array}}{ \ \ \ \ \ \space 4}$

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Example Question #1876 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}17\\ -\ 10\end{array}}{ \ \ \ \space ?}$

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at and count back .

17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7

$\frac{\begin{array}[b]{r}17\\ -\ 10\end{array}}{ \ \ \ \ \ \space 7}$

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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 : Common Core Math: Grade 2

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

All Common Core: 2nd Grade Math Resources

Example Questions

Example Question #211 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #211 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #211 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #1873 : Common Core Math: Grade 2

Example Question #212 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #213 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #1871 : Common Core Math: Grade 2

Example Question #222 : Operations & Algebraic Thinking

Example Question #1871 : Common Core Math: Grade 2

Example Question #1876 : Common Core Math: Grade 2

All Common Core: 2nd Grade Math Resources

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