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Answer Keys: Mentally Add 100 To Or Subtract...

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Answer Keys: Mentally add 100 to or subtract 100 from a number between 100 and 900.

 

These worksheets support the following Common Core State Standard:

CCSS.Math.Content.2.NBT.B.8

Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

Copyright Date: 2010

(Page last edited 10/16/2017)

 

These answer keys correspond to the worksheets found here: http://i4c.xyz/yb83svo6.

There are 100 worksheet answer keys available on this topic. Click on the thumbnails below to preview and download the answer keys.


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Answer Key Usage:

  1. Answer Keys may be printed and reproduced free of charge by teachers and parents for classroom or homework usage.
  2. It is also acceptable to link to this page on other websites and in emails using the title above and the following URL: http://internet4classrooms.com/printables/common_core/answer_key/math_mathematics_2nd_second_grade/gallery_mentally_add_100_subtract_100_from_2nd_second_grade_math_mathematics.htm or simply: http://i4c.xyz/yb9tvw7o.
  3. This image and data thereon may not be sold, published online or in print by anyone else.

 

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.
 

  

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