I tend to introduce calculation tasks to KS3 students in the following scaffolded way. The guidance is removed as the student progresses through the worksheet. For more about guidance fading I highly recommend Adam Boxer’s excellent blog post:
https://achemicalorthodoxy.wordpress.com/2019/10/02/guidance-fading-how-i-do-it/
The following revision sheets have been created and very kindly shared by @miss_padfield. They’re based around the AQA Activate 1 and 2 courses.
Science Doctor 