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Common Core: 1st Grade Math : Adding and Subtracting Within 20

Study concepts, example questions & explanations for Common Core: 1st Grade Math

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All Common Core: 1st Grade Math Resources

7 Diagnostic Tests 180 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #237 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}13\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

13,14,15,16,17,18

$\frac{\begin{array}[b]{r}13\\ +\ 5\end{array}}{ \ \ \space18}$

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Example Question #238 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}2\\ +\ 7\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}2\\ +\ 7\end{array}}{ \ \ \ \space9}$

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Example Question #239 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}12\\ +\ 7\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}12\\ +\ 7\end{array}}{ \ \ \space19}$

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Example Question #240 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}6\\ +\ 8\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

6,7,8,9,10,11,12,13,14

$\frac{\begin{array}[b]{r}6\\ +\ 8\end{array}}{ \ \ \space14}$

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Example Question #241 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}4\\ +\ 9\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}4\\ +\ 9\end{array}}{ \ \ \space13}$

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Example Question #242 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}3\\ +\ 12\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

3,4,5,6,7,8,9,10,11,12,13,14,15

$\frac{\begin{array}[b]{r}3\\ +\ 12\end{array}}{ \ \ \space15}$

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Example Question #243 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

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

Possible Answers:

Correct answer:

Explanation:

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

4,5,6,7,8,9,10,11,12,13,14,15,16,17

$\frac{\begin{array}[b]{r}4\\ +\ 13\end{array}}{ \ \ \space17}$

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Example Question #244 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}5\\ +\ 14\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

5,6,7,8,9,10,11,12,13,14,15,16,17,18,19

$\frac{\begin{array}[b]{r}5\\ +\ 14\end{array}}{ \ \ \space19}$

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Example Question #245 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}12\\ +\ 1\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

12,13

$\frac{\begin{array}[b]{r}12\\ +\ 1\end{array}}{ \ \ \space13}$

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Example Question #246 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}11\\ +\ 2\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

11,12,13

$\frac{\begin{array}[b]{r}11\\ +\ 2\end{array}}{ \ \ \space13}$

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All Common Core: 1st Grade Math Resources

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Common Core: 1st Grade Math : Adding and Subtracting Within 20

Study concepts, example questions & explanations for Common Core: 1st Grade Math

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #237 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #238 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #239 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #240 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #241 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #242 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #243 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #244 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #245 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #246 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

All Common Core: 1st Grade Math Resources

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