Grade 2 Mathematics Module 1

Grade 2 Module 1: Sums and Differences to 20

Module 1 sets the foundation for students to master the sums and differences to 20 and to  subsequently apply these skills to fluently add one-digit to two-digit numbers at least through 100 using place value understandings, properties of operations and the relationship between addition and subtraction.

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Common Core Learning Standards

CCLS State Standard
2.OA.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving...
2.OA.2 Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory...
2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of...

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