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# Add two three-digit numbers so that the total is within 1000.

These worksheets support the following Common Core State Standard:

CCSS.Math.Content.3.NBT.A.2

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

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

(Page last edited 10/16/2017)

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

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