Mathematics Vocabulary List Hi everyone, Here are some useful terminologies to remember for our Math class. You may use a dictionary to find the meaning of each term and write down the meaning in your own words or write examples to remember what it means. Natural Numbers Whole Numbers Integers Rational Numbers Irrational Numbers Real Numbers Square Root Proportion Fraction Decimal Point Percentage Denominator Numerator Common Denominator Volume Surface Area Perimeter Cross Multiplication Isolate Sign Dimension Three Dimensional Models Two Dimensional Model Right Triangle Pythagorean Theorem Linear Relationship Term Expression Variable Coefficient Constant Like Terms Exponential Form Order of Operations Relations Functions Domain Range Slope Linear Function Solutions or Roots Coordinate Plane x-intercept y-Intercept Vertical Line Horizontal Line Origin Perpendicular Lines Parallel Lines Quadratic Equation Linear Equation Slope Dependent Variable Independent Variable Inequality