Question | Answer |
Perfect Square | rational numbers who's square roots are whole numbers. |
Square root | one of two equal factors of a number |
Irrational number | a number that cannot be expresses as a/b where a and b are integers and b does not equal zero. |
variable | a letter that stands for a number. |
variable expression | a mathematical phrase that uses numerals and operation symbols. |
commutative property | for any numbers a and b, a+b=b+a and ab=ba. |
associative property | for any numbers a,b, and c (a+b)+c = a+(b+c) and (ab)c = a(bc). |
additive identity | when you add a number and 0, the sum equals the original number. |
multiplicative identity | for any number a, the product of a and 1 is a. |
distributive property | for any number a, b, and c, a(b+c) = ab+ac or a(b-c) = ab - ac. |
term | a number, a variable, or the product of a number and variable(s). |
constant | a term that has no variable. |
like terms | terms with the same variable(s), raised to the same power(s). |
coefficient | a number that multiplies a variable. |
equation | a mathematical sentence with an equal sign,=. |
open sentence | an equation with one or more variables. |