Simplifying radical expressions can be tough for some students. Sometimes even after carefully teaching the concept and practicing with students, they still can't quite catch it. For some students with a low threshold for frustration, this can mean not moving forward with other skills. Remedial and special ed students are especially at risk. I have found that a cheat sheet can be the perfect support for these students. It gives them the crutch they need to keep up with the class. You could use this with just a few students for differentiated instruction, or with an entire remedial class.
It also makes a great warm-up or review for regular classes. Using this will reveal to you who understands the process and who doesn't. As the numbers get bigger, you will have the oportunity to review breaking down radicals a little at a time. I also encourage students to use their 30 by 30 times chart which is also available FREE in my TpT store.
This is free, but I hope you will take the time to look around my TpT store. I also have Radicals Bingo and Guided notes on Operations with Radical Expressions.