Unit 6: Addition and Subtraction; Chapter 1: Finding the Missing Number (p. 9) Unit 7: Multiplication and Division: Review 7 (p. 62) Unit 8: Money; Chapter 3: Subtracting Money (p. 87) Unit 9: Fractions; Chapter 2: Writing Fractions (p. 111) Unit 12: Geometry; Chapter 2: Composite Figures (p. 153)