First, click on the link to watch the lesson. 1. Read each problem. 2. As a detective, your job is to find the answer and prove that it is correct. 3. Use the tool to move the magnifier around the screen to find the correct answer for each problem. Make sure that the magnifier shows the answer. 4. Use the or tools to prove that the answer is correct. Do not forget to choose one strategy and show all your work. There are two slides. Click on to turn in your activity. Click on to begin.