This is a worksheet where you can teach your students how to solve for simple interest in as simple and as interesting way of buying a car and buying a house. Students will look for the price of a car (or house or both) and decide the interest rate available, the number of years to pay and then find the final amount including the interest. In addition, students will solve for the monthly installment of the car or house they will “loan” over a period of time. Four different worksheets available to differentiate your instructions.