PERMDAS is a good way of remembering the priority order of operations in an equation with multiple problems:
Parenthesis: ( ) - A way to prioritize a certain part of a math equation. Whatever is in a parenthesis should be dealt with first.
Exponents: x2 - A way to express how many times a number is multiplied by itself.
Roots: √49 - The root of a number is the number it multiplies itself by to equal that number. For example the root of 49 is 7, because 7 x 7 = 49.
Multiplication: 2 x 4 – Multiplying two numbers together. It is a faster way to do large amounts of addition.
Division: 4/2 – Division is the breaking down of a number by another number.
Addition: 4 + 2 – Adding is the process of combining numbers to give you another number.
Subtraction: 4 – 2 – This is the process of taking away a certain amount from another number.
If you also want to get really creative, here is a common acronym for PEMDAS: Please Excuse My Dear Aunt Sally.