Common Core: 2nd Grade Math : Mentally Add and Subtract Within 20: CCSS.Math.Content.2.OA.B.2

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

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Example Questions

Example Question #361 : Ssat Elementary Level Quantitative (Math)

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Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #141 : How To Subtract

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #63 : Operations & Algebraic Thinking

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #64 : Operations & Algebraic Thinking

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #65 : Operations & Algebraic Thinking

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #66 : Operations & Algebraic Thinking

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #151 : How To Subtract

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #152 : How To Subtract

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Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #61 : Operations & Algebraic Thinking

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

Example Question #154 : How To Subtract

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start at  and count back .

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