Teaching the Common Core Math Standards With Hands-On Activities, Grades 3-5 (67 page)

Finding a Match Problem Cards (1 set per game)

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Equivalent Fraction Cards (2 sets per game)

Number and Operations—Fractions: 5.NF.2

“Use equivalent fractions as a strategy to add and subtract fractions.”

2. “Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers.”

Background

Writing equations and drawing models are useful strategies for solving addition and subtraction of fraction problems. No matter what strategy, or strategies, students use to solve problems, they should always ask themselves if their answers make sense.

Activity: Adding and Subtracting Fractions