Thinking Blocks Interactive Tutorials – Model and solve word problems with addition and subtraction. Online interactive tutorial. Second Grade and Third Grade.

**Online Word Problems with Addition and Subtraction within 20 – Challenge**

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**Online Word Problems with Addition and Subtraction Extra Information**

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**Online Word Problems with Addition and Subtraction within 100**

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**Online Word Problems with Online Addition Word Problems with 2 Steps**

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**Online Word Problems with Online Addition Word Problems with Extra Information**

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**Represent and solve problems involving addition and subtraction.**

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.