Omg the years I spent learning this stuff just to work for a boss that says I'm "not a math person" lolz but not really

calculus derivatives limits sheet (free printable, plus the page explains the concepts)

Algebra Tool Kit Reference Sheet - Free Printable Cheat Sheets. Four pages of easy-to-memorize algebra formulas.-Homeschool Encouragement

Free Printable Cheat Sheets

Math Reference Sheets are FREE - and wonderful collections of formulas in Algebra, Geometry, Calculus, Trig, & more!

Mensuration RS Aggarwal Class 7 Maths Solutions Exercise 20C

Mensuration – ICSE Solutions for Class 10 Mathematics - A Plus Topper

ACT Math Formulas Sheet - Most Often Needed for the ACT

This is a one-page formula sheet of the math formulas most often needed on the ACT. Most of these formulas are NOT given on the test, so it's a great resource