Find 10 more, given two-digit number

 

These worksheets support the following Common Core State Standard:

CCSS.Math.Content.1.NBT.C.5

Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

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

Copyright Date: 2010

(Page last edited 10/21/2014)

 

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

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Answer Key:

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