At w super market a 6oz bottle of brand a salad dressing cost $1.56 a 15 oz bottle costs $4.20 a 28 oz bottle costs $6.72 which is best buy

Why is Pemdas important?

Many students learn the order of operations using PEMDAS (Parentheses, Exponents, Multiplication, Division...) as a memory aid. This very often leads to the misconception that multiplication comes before division and that addition comes before subtraction. Understanding the principle is probably the best memory aid.