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Pre-Algebra
Expressions, Equations, Terms, etc...
Term | Definition |
---|---|
term | part of an expression that is added or subtracted |
variable | unknown quantity represented by a letter like "x" |
coefficient | numerical factor of the term, (the number in front and multiplying to the variable) |
factor | part of an expression that is multiplied |
expression | mathematical phrase that contains operations, numbers and/or variables |
equation | Mathematical statement that two expressions are equal |
numerical expression | mathematical phrase that contains operations between ONLY numbers |
algebraic expression | mathematical phrase that contains operations, with at LEAST ONE Variable |
natural numbers | counting numbers 1,2,3,… |
whole numbers | Counting numbers and zero 0,1,2,3,… |
integers | Whole numbers and their opposites '-3,-2,-1,0,1,2,3,.. |
rational numbers | fractions and ratios, decimals that terminate or repeat 1/4 0.25 or 1/3 0.3333 repeating |
irrational numbers | Non repeating Non terminating decimals ∏ Pi √2 |
constant | Numerical part of an expression that has no variable. |