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Number & Operations – Fractions – 4th Grade Build fractions from unit fractions. CCSS.Math.Content.4.NF.B.3.c Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction. Teacher Notes Knowing how do you decompose an improper fraction…

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Math and Reading Online Games Sum Dog – Free educational games that motivate your students to practice math and Reading – while you have full control over what they learn. Students play educational games against others worldwide, while teachers control what they learn. It uses a learning engine which understands each student, tailoring questions to…

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