A | B |

Order of Operations | Do all operations within grouping symbols first, next do all multiplications and divisions from left to right, then do all additions and subtractions from left to right. |

Algebraic Expression | Combination of variables, numbers and at least one operation. |

Inverse Operations | Operations undo each other, such as addition and subtraction |

Irrational Numbers | Numbers that cannot be expressed as a/b, where a and b are integers and b does not equal 0. |

Multiplicative Inverse | A number times its multiplicative inverse is equal to . The multiplicative inverse of 3/4 is 4/3. |

Negation | I f a statement is represrented by p, then not p is the negation of that statement. |

Empty Set | A set with no elements. |

Geometric Sequence | A sequence in which the ratio between any two successive terms is the same. |

Circumference | The distance around a circle. |

Absolute value of a number | The number of units the number is from zero on the number line. |