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6.2 Adding and Subtracting Rational Numbers

6.2 Adding and Subtracting Rational Numbers. Remember to Silence Your Cell Phone and Put It In Your Bag!. Modeling Addition and Subtraction of Rational Numbers. Physical objects Paper Folding Fraction Strips Tangrams Pattern Blocks Cuisenaire Rods.

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6.2 Adding and Subtracting Rational Numbers

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  1. 6.2 Adding and Subtracting Rational Numbers Remember to Silence Your Cell Phone and Put It In Your Bag!

  2. Modeling Addition and Subtraction of Rational Numbers • Physical objects • Paper Folding • Fraction Strips • Tangrams • Pattern Blocks • Cuisenaire Rods

  3. Procedures for Adding and Subtracting Rational Numbers

  4. Working with Mixed Numbers • Mixed Number • Improper Fraction • Be able to add and subtract fractions using a mixed number format

  5. Definition of RationalNumber Subtraction iff is the unique rational number such that

  6. Properties of RationalNumber Addition • Closure • Identity • Commutative • Associative • Inverse

  7. Computational Estimation Strategies • Rounding • Front-end • Compatible Numbers • Clustering

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