The number that indicates how many times the base is used as a factor. In the example of 53, 3 is the exponent and means that 5 is used three times as a factor: 5 • 5 • 5.
A mathematical phrase. For example, 8 • 2 + 3 is an expression. It represents the quantity 19.
|grouping symbols||Symbols such as parentheses, braces, brackets, and fraction bars that indicate the numbers to be grouped together.|
|operation||A mathematical process; the four basic operations are addition, subtraction, multiplication, and division.|
|order of operations||The rules that determine the sequence of calculations in an expression with more than one type of computation.|
A value that can be multiplied by itself to give the original number. For example if the original number is 9, then 3 is its square root because 3 multiplied by itself (32, pronounced “3 squared”) equals 9. The symbol used for a square root is called a radical sign and goes on top of the number. The square root of 9 is written as.