Common Core: 1st Grade Math : Operations & Algebraic Thinking

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

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Example Questions

Example Question #291 : Working With Addition And Subtraction Equations

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 #1611 : Ssat Elementary Level Quantitative (Math)

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 #222 : 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 #223 : 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 #224 : 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 #1611 : Numbers And Operations

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 #226 : 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 #227 : 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 #228 : 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 #1 : Addition Within 20 To Solve Word Problems

Molly has  pencils and Natalie has . How many total pencils do they have if they put theirs together? 

Possible Answers:

Correct answer:

Explanation:

This is an addition problem because Molly and Natalie are putting their pencils together, and they will have more once they put all the pencils together. 

We can start at  and count up .

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