What Is A Math Expression

An expression can be arithmetic algebraic polynomial and analytical.

What is a math expression.

Math students are often asked to give their answer in the simplest terms in other words to write answers as small as possible. A mathematical expression can be as simple as 2 4 or as complex as 4xy 8x 5 x y. So 9 x is an algebraic expression in the next few examples we will be working solely with. When we combine numbers and variables in a valid way using operations such as addition subtraction multiplication division exponentiation and other operations and functions as yet unlearned the resulting combination of mathematical symbols is called a mathematical expression.

2 3 is an expression 3 x 2 is also an expression. In early grades children are expected to write math expressions using numbers and. Numbers symbols and operators such as and grouped together that show the value of something. A math expression is different from a math equation.

In mathematics an expression or mathematical expression is a finite combination of symbols that is well formed according to rules that depend on the context. An equation will always use an equivalent operator between two math expressions. For example 25 7 64 2 20 5 102. Mathematical phrases can be written as verbal sentences you should be able to.

Translate verbal sentences into algebraic expressions translate algebraic expressions into phrases. Mathematical symbols can designate numbers variables operations functions brackets punctuation and grouping to help determine order of operations and other aspects of logical syntax. The expression 9 8 represents a single number 17 this expression is a numerical expression also called an arithmetic expression the expression 9 x represents a value that can change if x is 2 then the expression 9 x has a value of 11 if x is 6 then the expression has a value of 15. The structure of defining math expression advances in different grades.

Though a long ungainly expression and a short elegant one may technically equal the same thing often a math problem isn t considered done until the answer has been reduced to simplest terms. The product of two and three.