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# Math exam notes

### 1st quarter

Question | Answer |
---|---|

integer | a whole number that can be positive, negative, or zero |

absolute value | the distance of a number from zero |

opposites | numbers that are the same distance away from zero but, opposite sides of a number line |

additive inverse | when you add the value of the number to it and get zero (-3 + 3 = 0) |

distributive property | lets you multiply a sum by adding each addend seperatley and then add the products |

order of operations | an order in how to calculate numbers (PEMDAS) |

rational number | any number that can be written as a fraction |

whole number | any positive number that doesn't have decimals, or fractions |

terminating decimal | a decimal that doesn't go on forever |

repeating decimal | a decimal that goes on forever; repeated numbers |

adding with different signs | subtract and keep the sign of the number with the largest value |

adding with the same signs | add the numbers and keep the common sign |

subtracting integers | add the opposite (keep, change, change) |

multiplying with different signs | the product is always negative |

multiplying with the same signs | the product is always positive |

dividing with different signs | the quotient is always negative |

dividing with the same signs | the quotient is always positive |