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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 #423 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}7\\ +\ 3\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

7,8,9,10

$\frac{\begin{array}[b]{r}7\\ +\ 3\end{array}}{ \ \ \space10}$

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Example Question #424 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}8\\ +\ 4\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

8,9,10,11,12

$\frac{\begin{array}[b]{r}8\\ +\ 4\end{array}}{ \ \ \space12}$

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Example Question #425 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}3\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

3,4,5,6,7,8

$\frac{\begin{array}[b]{r}3\\ +\ 5\end{array}}{ \ \ \ \space8}$

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Example Question #301 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}5\\ +\ 6\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

5,6,7,8,9,10,11

$\frac{\begin{array}[b]{r}5\\ +\ 6\end{array}}{ \ \ \space11}$

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Example Question #1221 : How To Add

$\frac{\begin{array}[b]{r}9\\ +\ 6\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}9\\ +\ 6\end{array}}{ \ \ \space15}$

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Example Question #1222 : How To Add

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

Possible Answers:

Correct answer:

Explanation:

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

10,11,12,13,14,15,16,17

$\frac{\begin{array}[b]{r}10\\ +\ 7\end{array}}{ \ \ \space17}$

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Example Question #1223 : How To Add

$\frac{\begin{array}[b]{r}8\\ +\ 9\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}8\\ +\ 9\end{array}}{ \ \ \space17}$

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Example Question #1224 : How To Add

$\frac{\begin{array}[b]{r}10\\ +\ 9\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

10,11,12,13,14,15,16,17,18,19

$\frac{\begin{array}[b]{r}10\\ +\ 9\end{array}}{ \ \ \space19}$

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Example Question #1231 : How To Add

$\frac{\begin{array}[b]{r}4\\ +\ 12\end{array}}{ \ \ \space?}$

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

$\frac{\begin{array}[b]{r}4\\ +\ 12\end{array}}{ \ \ \ \space16}$

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Example Question #1232 : How To Add

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

Possible Answers:

Correct answer:

Explanation:

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

7,8,9,10,11,12,13,14,15,16,17,18,19,20

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

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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

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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 #423 : Operations & Algebraic Thinking

Example Question #424 : Operations & Algebraic Thinking

Example Question #425 : Operations & Algebraic Thinking

Example Question #301 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #1221 : How To Add

Example Question #1222 : How To Add

Example Question #1223 : How To Add

Example Question #1224 : How To Add

Example Question #1231 : How To Add

Example Question #1232 : How To Add

All Common Core: 1st Grade Math Resources

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