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Common Core: 1st Grade Math : Find the Missing Number in Addition and Subtraction Equations: CCSS.MATH.CONTENT.1.OA.D.8

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 #192 : How To Add

Fill in the blank.

__________ =11

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}11\\ -\ \ 5\end{array}}{ \ \ \ \ \space 6}$

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Example Question #193 : How To Add

Fill in the blank.

__________ =10

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}10\\ -\ \ 2\end{array}}{ \ \ \ \ \space 8}$

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Example Question #194 : How To Add

Fill in the blank.

__________ =13

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}13\\ -\ \ 6\end{array}}{ \ \ \ \ \space 7}$

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Example Question #51 : Find The Missing Number In Addition And Subtraction Equations: Ccss.Math.Content.1.Oa.D.8

Fill in the blank.

__________

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

7,8,9

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}9\\ -\ \ 7\end{array}}{ \ \ \ \ \space 2}$

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Example Question #196 : How To Add

Fill in the blank.

__________ +8=14

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}14\\ -\ \ 8\end{array}}{ \ \ \ \ \space 6}$

Report an Error

Example Question #197 : How To Add

Fill in the blank.

__________ +9=20

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}20\\ -\ \ 9\end{array}}{ \ \ \ \ \space 11}$

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Example Question #198 : How To Add

Fill in the blank.

__________ +10=15

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

10,11,12,13,14,15

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}15\\ -\ \ 10\end{array}}{ \ \ \ \ \ \ \space 5}$

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Example Question #199 : How To Add

Fill in the blank.

__________ +11=19

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}19\\ -\ \ 11\end{array}}{ \ \ \ \ \ \ \space 8}$

Report an Error

Example Question #632 : Operations & Algebraic Thinking

Fill in the blank.

__________ +12=18

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

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

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}18\\ -\ \ 12\end{array}}{ \ \ \ \ \ \ \space 6}$

Report an Error

Example Question #53 : Find The Missing Number In Addition And Subtraction Equations: Ccss.Math.Content.1.Oa.D.8

Fill in the blank.

__________ +13=14

Possible Answers:

Correct answer:

Explanation:

This question is asking what can we add to to get to .

We can count up from until we get to , and count the number of numbers we had to add after .

13,14

We have to add numbers to get from to .

Or we can subtract to find the missing number.

$\frac{\begin{array}[b]{r}14\\ -\ \ 13\end{array}}{ \ \ \ \ \ \ \space 1}$

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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 : Find the Missing Number in Addition and Subtraction Equations: CCSS.MATH.CONTENT.1.OA.D.8

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

All Common Core: 1st Grade Math Resources

Example Questions

Example Question #192 : How To Add

Example Question #193 : How To Add

Example Question #194 : How To Add

Example Question #51 : Find The Missing Number In Addition And Subtraction Equations: Ccss.Math.Content.1.Oa.D.8

Example Question #196 : How To Add

Example Question #197 : How To Add

Example Question #198 : How To Add

Example Question #199 : How To Add

Example Question #632 : Operations & Algebraic Thinking

Example Question #53 : Find The Missing Number In Addition And Subtraction Equations: Ccss.Math.Content.1.Oa.D.8

All Common Core: 1st Grade Math Resources

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