Integers, The set {...-2, -1, 0, 1, 2, ...}., Perimeter, The total distance around a two dimensional figure., Diameter, The straight line crossing from one side of a circle to the other passing through the center., Radius, The distance from the center of a circle to the edge., Circumference, The distance around a circle., Natural Numbers, The set {1, 2, 3, ...}., Whole Numbers, The set {0, 1, 2, 3, ...}., Rational Numbers, The set of numbers that can be expressed as a fraction where the numerator and denominator are both integers., Irrational Number, Numbers that cannot be expressed as terminating or repeating decimals. They cannot be written as a fraction (with integers)., Real Number, The set of rational and irrational numbers., Reciprocal, The multiplicative inverse of a number. The product of a number and its reciprocal is 1., Area, The measure of the surface enclosed by a geometric figure., Volume, The measure of space occupied by a solid region., Algebraic expression, An expression consisting of one or more numbers and variables along with one or more arithmetic operations., Variable, Symbols used to represent unspecified numbers or values., Term, A number, a variable, or a product or quotient of numbers and variables., Factor, In an algebraic expression, they are the quantities being multiplied., Product, The result of quantities being multiplied., Power, An expression of the form xn, read x to the nth power., Exponent, In an expression of the form xn, it is the n., Base, In an expression of the form xn, it is the x., Sum, Indicates addition., Less than, Indicates subtraction., Of, Indicates multiplication., Quotient, Indicates division.

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