Number and operations

3.4(A)

Add and Subtract to 1,000

Solve 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.

Part of The student applies mathematical process standards to develop and use strategies and methods for whole number computations in order to solve problems with efficiency and accuracy

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Intro

Adding and Subtracting to 1,000

Today you will learn to solve one-step and two-step problems by adding and subtracting numbers up to 1,000. You will use three kinds of strategies: place value, properties of operations, and the way addition and subtraction go together. Let's think about the county fair to see how these strategies work.