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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 #211 : Adding And Subtracting Within 20

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

Possible Answers:

Correct answer:

Explanation:

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

3,4

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

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Example Question #181 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}17\\ +\ 1\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

17,18

$\frac{\begin{array}[b]{r}17\\ +\ 1\end{array}}{ \ \ \space18}$

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Example Question #213 : Adding And Subtracting Within 20

$\frac{\begin{array}[b]{r}15\\ +\ 3\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

To add we count up. Start at and count up

15,16,17,18

$\frac{\begin{array}[b]{r}15\\ +\ 3\end{array}}{ \ \ \space18}$

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Example Question #214 : Adding And Subtracting Within 20

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

Possible Answers:

Correct answer:

Explanation:

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

9,10,11,12,13

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

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Example Question #191 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}4\\ +\ 7\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}4\\ +\ 7\end{array}}{ \ \ \space11}$

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Example Question #215 : Adding And Subtracting Within 20

$\frac{\begin{array}[b]{r}6\\ +\ 12\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

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

$\frac{\begin{array}[b]{r}6\\ +\ 12\end{array}}{ \ \ \ \space18}$

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Example Question #216 : Adding And Subtracting Within 20

$\frac{\begin{array}[b]{r}12\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

12,13,14,15,16,17

$\frac{\begin{array}[b]{r}12\\ +\ 5\end{array}}{ \ \ \space17}$

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Example Question #194 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

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

Possible Answers:

Correct answer:

Explanation:

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

6,7,8,9,10,11,12,13,14,15

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

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Example Question #195 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

$\frac{\begin{array}[b]{r}1\\ +\ 11\end{array}}{ \ \ \space?}$

Possible Answers:

Correct answer:

Explanation:

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

1,2,3,4,5,6,7,8,9,10,11,12

$\frac{\begin{array}[b]{r}1\\ +\ 11\end{array}}{ \ \ \space12}$

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Example Question #196 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

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

Possible Answers:

Correct answer:

Explanation:

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

2,3,4,5,6,7,8,9,10,11,12,13,14,15,16

$\frac{\begin{array}[b]{r}2\\ +\ 14\end{array}}{ \ \ \space16}$

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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 #211 : Adding And Subtracting Within 20

Example Question #181 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #213 : Adding And Subtracting Within 20

Example Question #214 : Adding And Subtracting Within 20

Example Question #191 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #215 : Adding And Subtracting Within 20

Example Question #216 : Adding And Subtracting Within 20

Example Question #194 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #195 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

Example Question #196 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

All Common Core: 1st Grade Math Resources

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