1. Model with mathematics. 2. Use appropriate tools strategically. 3. Apply properties of operations as strategies to multiply and divide rational numbers. 4. Solve real-world and mathematical problems involving the four operations with rational numbers. 5. Understand that the probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring. Larger numbers indicate greater likelihood. A probability near 0 indicates an unlikely event, a probability around 1/2 indicates an event that is neither unlikely nor likely, and a probability near 1 indicates a likely event. 6. Approximate the probability of a chance event by collecting data on the chance process that produces it and observing its long-run relative frequency, and predict the approximate relative frequency given the probability. 7. Develop a uniform probability model by assigning equal probability to all outcomes, and use the model to determine probabilities of events.