During the summer, my IB/Precalculus students need to keep their skills sharp, so I wrote a series of worksheets for this purpose. This particular worksheet focuses on algebra skills: rational expressions, word problems, solving simultaneous equations, and the very types of questions students seem to forget or with which they struggle without continued practice.
In my experience, students will struggle most with questions such as "Timmy can wash a car by himself in 20 minutes, and Marcy can do a car in 19 minutes, so how long will it take them to wash 30 cars?"
For this worksheet, I expect students to show their work on a separate sheet of paper.
Please download the pdf preview file first, so you can see exactly what's included; the product file is a word document, which you may personalize for your students.