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Rational numbers A number that can be expressed as an integer or a quotient of integers. For example, 2, -5, and 1 / 2 are rational. 有理数
Integers any rational number that can be expressed as the sum or difference of a finite number of units, being a member of the set …--3, --2, --1, 0, 1, 2, 3… 整数
Quotients The number that results when one number is divided by another. If 6 is divided by 3, the quotient can be represented as 2, or as 6 ÷ 3, or as the fraction 6 / 3 . 商数
Whole numbers Also called counting number. one of the positive integers or zero; any of the numbers (0, 1, 2, 3, …). A member of the set of positive integers and zero.
Irrational numbers any real number that cannot be expressed as the ratio of two integers, such as π 无理数
Linear equation Solving the linear equation is isolating the variable on one side
Created by: Lilyn Ta