Question

What the Order of Operations?

Answer 1

pedmas
parentheses
exponents
division
multiplication
addition
subtraction

Answer 2

The Order of operations from the through PEDMAS, which means:
P - Parentheses first
E - Exponents (ie Powers and Square Roots, etc.)
MD - Multiplication and Division
AS - Addition and Subtraction

Speakers of British English often instead use "BODMAS", which stands for "Brackets, Orders, Division and Multiplication, and Addition and Subtraction". Since "brackets" are the same as parentheses and "orders" are the same as exponents, the two acronyms mean the same thing.

But you must know that the MD (Multiplication and Division) and AS (Addition and Subtraction), the prevailing order of left-to-right

For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left-to-right, you get to the division first.