DMAS
Having an agreed order of operation helps in that it means less brackets (parentheses) are needed in an expression (making it less messy) to get the same (correct) answer.
order of operations
The use of parentheses allows you to control, or change, the regular order of operations. For example, if you have the expression 4 + 2 * 3, under the normal order of operations, you would perform the multiplication before the addition. To perform the addition first, you just add parenthesis so the expression reads (4 + 2) * 3 instead.
The evaluate a algebraic math expression you first must substitute a number for each variable. Then you must perform the operation in the correct order.
That looks like the description of an EXPRESSION. However, an expression need not have "at least one operation"; a single number, or variable, is a perfectly valid expression.
Yea because the collection of rules that define which procedures to perform first order to evaluate a given mathematical expression.
It is an algebraic expression.
3020 is a number, not an operation. A number cannot have an inverse operation.
In mathematics, there is an order of priority for arithmetical operations. It is variously known as BODMAS, PODMAS. When working with an expression, an operation indicated by D (Division) must be performed before A (Addition). Sometimes you need to change the order and brackets are used to do that.
In Evaluating Expression first,replace each letter in the expression with the assigned value. second,perform the operations in the expression using the correct order of operations and the last you got the answer
It is an algebraic expression.
an expression