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Lesson 3.5: Key Concept: Mental Math, Subtract 9
Chapter
Lesson
3.1 Launch the Chapter with Career
3.1 Family Letter
3.1 Big Idea of the Chapter
3.1 Chapter Vocabulary
3.1 Investigate
3.1 Key Concept Example Video #1
3.1 Connect to Real Life Example Video
3.1 Math Musical
3.2 Investigate
3.2 Key Concept Example Video #1
3.2 Connect to Real Life Example Video
3.3 Investigate
3.3 Key Concept Example Video #1
3.3 Connect to Real Life Example Video
3.4 Investigate
3.4 Key Concept Example Video #1
3.4 Connect to Real Life Example Video
3.5 Investigate
3.5 Key Concept Example Video #1
3.5 Connect to Real Life Example Video
3.6 Investigate
3.6 Key Concept Example Video #1
3.6 Connect to Real Life Example Video
3.7 Investigate
3.7 Key Concept Example Video #1
3.7 Connect to Real Life Example Video
3.8 Using The Problem Solving Plan
3.9 Investigate
Lesson 3.5: Key Concept: Mental Math, Subtract 9
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