Common Core: 2nd Grade Math : Operations & Algebraic Thinking

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

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Example Questions

Example Question #311 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Possible Answers:

Correct answer:

Explanation:

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

Example Question #613 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #621 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #622 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #311 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Possible Answers:

Correct answer:

Explanation:

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

Example Question #624 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #625 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #626 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #627 : How To Add

Possible Answers:

Correct answer:

Explanation:

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

Example Question #312 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Possible Answers:

Correct answer:

Explanation:

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

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