Understand and apply the Addition Rule.*
Explain the Addition Rule, P(A or B) = P(A) + P(B) – P(A and B) in terms of visual models (Venn diagrams, frequency tables, etc.).
Apply the Addition Rule to solve problems and interpret the answer in terms of the given context.
Make sense of problems and persevere in solving them.
Reason abstractly and quantitatively.
Model with mathematics.
Use appropriate tools strategically.
Attend to precision.
Look for and express regularity in repeated reasoning.
