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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 #1522 : Ssat Elementary Level Quantitative (Math)

Fill in the blank.

$\displaystyle 5+$ __________ =13 $\displaystyle =13$

Possible Answers:

$\displaystyle 10$

$\displaystyle 7$

$\displaystyle 8$

$\displaystyle 9$

$\displaystyle 11$

Correct answer:

$\displaystyle 8$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 13-5=8 $\displaystyle 13-5=8$ , which means 5+8=13 $\displaystyle 5+8=13$ .

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Example Question #733 : Operations & Algebraic Thinking

Fill in the blank.

$\displaystyle 6+$ __________ =18 $\displaystyle =18$

Possible Answers:

$\displaystyle 10$

$\displaystyle 9$

$\displaystyle 13$

$\displaystyle 12$

$\displaystyle 11$

Correct answer:

$\displaystyle 12$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 18-6=12 $\displaystyle 18-6=12$ , which means 6+12=18 $\displaystyle 6+12=18$ .

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Example Question #731 : Common Core Math: Grade 1

Fill in the blank.

$\displaystyle 7+$ __________ =10 $\displaystyle =10$

Possible Answers:

$\displaystyle 5$

$\displaystyle 6$

$\displaystyle 3$

$\displaystyle 7$

$\displaystyle 4$

Correct answer:

$\displaystyle 3$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 10-7=3 $\displaystyle 10-7=3$ , which means 7+3=10 $\displaystyle 7+3=10$ .

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Example Question #223 : Working With Addition And Subtraction Equations

Fill in the blank.

$\displaystyle 8+$ __________ =15 $\displaystyle =15$

Possible Answers:

$\displaystyle 7$

$\displaystyle 5$

$\displaystyle 8$

$\displaystyle 4$

$\displaystyle 6$

Correct answer:

$\displaystyle 7$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 15-8=7 $\displaystyle 15-8=7$ , which means 8+7=15 $\displaystyle 8+7=15$ .

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Example Question #1523 : Ssat Elementary Level Quantitative (Math)

Fill in the blank.

$\displaystyle 9+$ __________ =14 $\displaystyle =14$

Possible Answers:

$\displaystyle 8$

$\displaystyle 7$

$\displaystyle 6$

$\displaystyle 5$

$\displaystyle 9$

Correct answer:

$\displaystyle 5$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 14-9=5 $\displaystyle 14-9=5$ , which means 9+5=14 $\displaystyle 9+5=14$ .

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Example Question #228 : Working With Addition And Subtraction Equations

Fill in the blank.

11+ $\displaystyle 11+$ __________ =13 $\displaystyle =13$

Possible Answers:

$\displaystyle 1$

$\displaystyle 0$

$\displaystyle 3$

$\displaystyle 4$

$\displaystyle 2$

Correct answer:

$\displaystyle 2$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 13-11=2 $\displaystyle 13-11=2$ , which means 11+2=13 $\displaystyle 11+2=13$ .

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Example Question #222 : Working With Addition And Subtraction Equations

Fill in the blank.

$\displaystyle 1+$ __________ =14 $\displaystyle =14$

Possible Answers:

$\displaystyle 10$

$\displaystyle 9$

$\displaystyle 12$

$\displaystyle 13$

$\displaystyle 11$

Correct answer:

$\displaystyle 13$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 14-1=13 $\displaystyle 14-1=13$ , which means 1+13=14 $\displaystyle 1+13=14$ .

Report an Error

Example Question #731 : Operations & Algebraic Thinking

Fill in the blank.

$\displaystyle 2+$ __________ $\displaystyle =3$

Possible Answers:

$\displaystyle 0$

$\displaystyle 1$

$\displaystyle 3$

$\displaystyle 2$

$\displaystyle 4$

Correct answer:

$\displaystyle 1$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 3-2=1 $\displaystyle 3-2=1$ , which means 2+1=3 $\displaystyle 2+1=3$ .

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Example Question #736 : Operations & Algebraic Thinking

Fill in the blank.

$\displaystyle 2+$ __________ =18 $\displaystyle =18$

Possible Answers:

$\displaystyle 12$

$\displaystyle 15$

$\displaystyle 16$

$\displaystyle 14$

$\displaystyle 13$

Correct answer:

$\displaystyle 16$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 18-2=16 $\displaystyle 18-2=16$ , which means 2+16=18 $\displaystyle 2+16=18$ .

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Example Question #741 : Operations & Algebraic Thinking

Fill in the blank.

$\displaystyle 3+$ __________ =16 $\displaystyle =16$

Possible Answers:

$\displaystyle 15$

$\displaystyle 11$

$\displaystyle 12$

$\displaystyle 13$

$\displaystyle 14$

Correct answer:

$\displaystyle 13$

Explanation:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. 16-3=13 $\displaystyle 16-3=13$ , which means 3+13=16 $\displaystyle 3+13=16$ .

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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 #1522 : Ssat Elementary Level Quantitative (Math)

Example Question #733 : Operations & Algebraic Thinking

Example Question #731 : Common Core Math: Grade 1

Example Question #223 : Working With Addition And Subtraction Equations

Example Question #1523 : Ssat Elementary Level Quantitative (Math)

Example Question #228 : Working With Addition And Subtraction Equations

Example Question #222 : Working With Addition And Subtraction Equations

Example Question #731 : Operations & Algebraic Thinking

Example Question #736 : Operations & Algebraic Thinking

Example Question #741 : Operations & Algebraic Thinking

All Common Core: 1st Grade Math Resources

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