Improving SAT maths score

I have recently started doing SAT practice tests and have been consistently getting around 800 on the critical reading section and 740 on the writing but only 640 on the maths section. Are there any methods or resources you guys can recommend for improving my maths score? Any advice would be much appreciated!

Your writing and reading scores are great. SAT maths is not that tough and you should be able to improve. One tip for maths which helped me was reviewing your mistakes over and over. Practice makes you perfect and when I say practice, focusing on mistakes is imperative. In my first two attempts, my score was 680 and 670 but when I started to focus on my mistakes more, my score jumped up to 780.