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Mathematics - Elementary Curriculum Mathematics Grade 1
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Lesson Plans

Standard 1.OA.3

Apply properties of operations as strategies to add and subtract. For example: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 =12. (Associative property of addition.) First grade students need not use formal terms for these properties.

UEN logo http://www.uen.org - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialists - MELISSA GARBER or Molly Basham and see the Mathematics - Elementary website. For general questions about Utah's Core Standards contact the Director - Meghan Everette.

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