Common Core: 1st Grade Math : Subtracting within 20

研究概念,例子问题&解释for Common Core: 1st Grade Math

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Example Questions

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Example Question #1 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back

Example Question #1 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back

Example Question #3 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back

Example Question #4 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back.

Example Question #5 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back.

Example Question #6 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back.

Example Question #1 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back.

Example Question #8 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back.

Example Question #9 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back

Example Question #1 :Subtracting Within 20

Possible Answers:

Correct answer:

Explanation:

To subtract we can count backwards. Start atand count back.

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