Math+Vocabulary


 * Math Vocabulary **

variable --- a letter that represents a number in an algebraic expression (example: In the expression, n+6, n is the variable) expression --- a number, variable, or any combination of numbers, variables, and operation signs (example: n+5 or 6+3) evaluate --- to substitute the values given for the variables in an expression and perform the operations to find the value of the expression (example: Solve this equation, knowing that the value of n=2... n+2=?) Commutative Property of Addition --- n+7=7+n Associative Property of Addition --- (n+6)+5=n+(6+5) Identity Property of Addition --- 0+n=n+0 or 0+54=54+0 base --- the number that is used as a repeated factor in a product (example: 8 3, 8 is the base) decimal --- a number with one or more digits to the right of a decimal point decimal point --- symbol used to separate ones and tenths places in a decimal

expanded form ---a way of writing a number as the sum of the values of its digits (example: 158 would be written 100+50+8 in expanded form) exponent --- the number in a power that tells the number of times the base is used as a factor (example: 5 3, 3 is the exponent)

period --- in a number, each group of 3 digits separated by a comma place value --- the value of a digit determined by its position or place in a number power of ten --- a power with a base of 10. (example: 10 1, 10 2 , ... are powers of 10)

standard form ---a way of writing a number using only digits (example: four hundred sixty-seven would be written 467 in standard form)

<span style="color: #000080; display: block; font-family: 'Comic Sans MS',cursive; font-size: 130%; text-align: left;">whole number --- one of the positive integers and zero (example: 0, 1, 2, 3, .....)