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3rd Grade STAAR Practice Solving Addition and Subtraction Problems (3.4A - #7)
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Practice solving with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction with a test item from the 2018 STAAR test (#14 - 3.4A). I explain the correct answer and show why the incorrect answers are wrong.
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