 is the most common in the US. However several other acronyms are used. Here are a few examples:

The operation of removing objects from a collection

Splitting a number of items equally into groups

The part of a power showing how many times the base is multiplied by itself

A number to multiply by itself to get the number underneath the square root symbol

Mathagon

Addition and Subtraction

Multiplication and Division 

Addition, Subtraction, Multiplication and Division

PEMDAS

What Is the Order of Operations?

Introduction

Solve math problems, activities and exercises related to "How Do You Solve Problems with Addition and Subtraction, Multiplication and Division, Exponents, Square Roots and Parentheses?".