Common Core: 1st Grade Math : Working with Addition and Subtraction Equations

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

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Example Questions

Example Question #9 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #10 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #11 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #12 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #13 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means 

Example Question #14 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #15 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #16 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #17 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

Example Question #18 : 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:

To find the missing piece of an addition problem, you can take the biggest number minus the smallest number. , which means .

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