The ACT math section isn't so much hard as it is tricky. Unlike school where you spend a few weeks working on a unit and then take a test on it, the ACT math test covers material that goes back as far as middle school for some students. One of the first steps in getting a great math score is mastering these 26 key concepts. Sum: Addition Difference: Subtraction Product: Multiplication Quotient: Division Order of Operations / PEMDAS: Parentheses, Exponents, Multiplication/Div