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Lesson Plan

Subtract within 100 by using addition

teaches Common Core State Standards CCSS.Math.Practice.MP1
teaches Common Core State Standards CCSS.Math.Content.2.NBT.B.5
teaches Common Core State Standards CCSS.Math.Practice.MP7
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Big Ideas: There are many different ways to solve subtraction problems. This lessons builds on and deepens the students' understanding of the relationship between addition and subtraction. This task will have students explore multiple ways to use addition as a strategy for subtraction. Vocabulary: addition, subtraction, sum, difference, equivalent Special Materials: base-ten blocks, connecting cubes, or ten frames (optional)
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