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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 #335 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}12\\ +\ 2\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

12,13,14

$\frac{\begin{array}[b]{r}12\\ +\ 2\end{array}}{ \ \ \space14}$

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Example Question #336 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}1\\ +\ 3\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

1,2,3,4

$\frac{\begin{array}[b]{r}1\\ +\ 3\end{array}}{ \ \ \ \space4}$

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Example Question #335 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

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

Possible Answers:

Correct answer:

Explanation:

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

13,14,15,16,17

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

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Example Question #336 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}10\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

10,11,12,13,14,15

$\frac{\begin{array}[b]{r}10\\ +\ 5\end{array}}{ \ \ \space15}$

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Example Question #461 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}11\\ +\ 4\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

11,12,13,14,15

$\frac{\begin{array}[b]{r}11\\ +\ 4\end{array}}{ \ \ \space15}$

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Example Question #462 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}4\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

4,5,6,7,8,9

$\frac{\begin{array}[b]{r}4\\ +\ 5\end{array}}{ \ \ \ \space9}$

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Example Question #463 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}10\\ +\ 6\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}10\\ +\ 6\end{array}}{ \ \ \space16}$

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Example Question #464 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}2\\ +\ 8\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}2\\ +\ 8\end{array}}{ \ \ \space10}$

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Example Question #465 : Operations & Algebraic Thinking

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

Possible Answers:

Correct answer:

Explanation:

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

2,3,4,5,6,7,8,9,10,11,12,13

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

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Example Question #466 : Operations & Algebraic Thinking

$\frac{\begin{array}[b]{r}8\\ +\ 12\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}8\\ +\ 12\end{array}}{ \ \ \ \space20}$

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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 #335 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #336 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #335 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #336 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #461 : Operations & Algebraic Thinking

Example Question #462 : Operations & Algebraic Thinking

Example Question #463 : Operations & Algebraic Thinking

Example Question #464 : Operations & Algebraic Thinking

Example Question #465 : Operations & Algebraic Thinking

Example Question #466 : Operations & Algebraic Thinking

All Common Core: 1st Grade Math Resources

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