Document Excerpt 2: Cluster 2.OA.A: Represent and solve problems involving addition and subtraction. (Pages 10-19) icon
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Excerpt 2: Cluster 2.OA.A: Represent and solve problems involving addition and subtraction. (Pages 10-19)

UnboundEdGrade 2 Standards Guide: Operations & Algebraic Thinking
Supporting grades: 2

Description: Explanations and examples of how to implement the Operations & Algebraic Thinking standards in Grade 2. In the first problem, the product is unknown; students need to multiply 12 by 6 to find the total. In the second problem, the multiplier (or "scale factor") is unknown; students can use division to solve this problem (45 ÷ 15 = ?) In the third problem, the smaller amount is unknown; students can use division to solve this problem (45 ÷ 3 = ?). In addition to understanding this new meaning of multiplication, in Grade 4 students continue to solve word problems involving equal groups, arrays, and area, like they did in Grade 3.

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Excerpt 1: Cluster 2.OA.B: Add and subtract within 20. (Pages 4-10)

Grade 2 Standards Guide: Operations & Algebraic Thinking

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Excerpt 3: Connections to Cluster 2.MD.D: Represent and interpret data. (Pages 20-23)

Grade 2 Standards Guide: Operations & Algebraic Thinking