Answer:
look at explanation, hope it helps
Step-by-step explanation:
revision is totally unique to you. but some ways that you can revise are flash cards, mind maps or just writing things out. sometimes i make my own worksheets (i will already know the answers but that is sort of the point as it allows you to understand the topic more). also, if you are unsure of anything search it up and do a short lesson. this really helps.
another technique (this is more for stuff like french or german, but remembering the words in certain ways like little phrases or just connotations, that is what helped me remember words. you could try this with equations or something, but i don't know if it would work.
hope you find a technique that will help, also try not to get distracted and do a timer to get work done. good luck on the test!