I have found this collection of 58 SAT practice short videos and answer explanations great as entertaining "do now" or "exit ticket" problems. Since the questions and the explanations are high-quality, they require very little preparation of you. It doesn't get much easier than just pressing play!
These easy-to-understand videos and practice questions help you as a teacher to get to know what is on the SAT and see where your class material aligns with the material on the test. It is also a great resource to direct your students to in order to help them study for the test during any free time in class, for homework, or over the summer.
This compilation of hundreds of practice test questions makes it easy to add ACT/SAT practice into your math classrooms. Using these questions as "questions of the day" were particularly popular in my classrooms. Introducing an ACT/SAT question at the beginning of the class that related to the day's lesson helped set the tone for the importance of the day's lesson for their future endeavors.