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Standards/Math/North Carolina/NC.1.OA

NC.1.OA

NC.1 Grade 1
NC.1.G
NC.1.MD
NC.1.NBT
NC.1.OA
NC.1.OA.1NC.1.OA.2NC.1.OA.3NC.1.OA.4NC.1.OA.6NC.1.OA.7NC.1.OA.8NC.1.OA.9

Operations and Algebraic Thinking

NC.1.OA.1Represent and solve addition and subtraction word problems, within 20, with unknowns, by using objects, drawings, and equations with a symbol for the unknown number to represent the problem, when solving:NC.1.OA.2Represent and solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, by using objects, drawings, and equations with a symbol for the unknown number.NC.1.OA.3Apply the commutative and associative properties as strategies for solving addition problems.NC.1.OA.4Solve an unknown-addend problem, within 20, by using addition strategies and/or changing it to a subtraction problem.NC.1.OA.6Add and subtract, within 20, using strategies such as:NC.1.OA.7Apply understanding of the equal sign to determine if equations involving addition and subtraction are true.NC.1.OA.8Determine the unknown whole number in an addition or subtraction equation involving three whole numbers.NC.1.OA.9Demonstrate fluency with addition and subtraction within 10.
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