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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 #1152 : How To Add

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

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 #352 : Operations & Algebraic Thinking

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

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 #353 : Operations & Algebraic Thinking

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

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 #1151 : How To Add

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

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 #1152 : How To Add

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

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 #1153 : How To Add

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

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 #1154 : How To Add

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

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 #365 : Common Core Math: Grade 1

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

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 #366 : Common Core Math: Grade 1

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

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 #367 : Common Core Math: Grade 1

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

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 #1152 : How To Add

Example Question #352 : Operations & Algebraic Thinking

Example Question #353 : Operations & Algebraic Thinking

Example Question #1151 : How To Add

Example Question #1152 : How To Add

Example Question #1153 : How To Add

Example Question #1154 : How To Add

Example Question #365 : Common Core Math: Grade 1

Example Question #366 : Common Core Math: Grade 1

Example Question #367 : Common Core Math: Grade 1

All Common Core: 1st Grade Math Resources

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