Description: A quick-reference guide that allows teachers to quickly identify the prerequisite standards for every Grade 3 math standard. Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends. Use place value understanding to round whole numbers to the nearest 10 or 100. Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
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