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# S1 F - MATH

### Study Guide for Semester Final - 7th Grade FCMS

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

How do you multiply fractions? | 1. Reduce if possible. 2. Multiply the numerators. 3. Multiply the denominators. 4. Reduce the fraction if needed. |

How do you divide fractions? | 1. Find the reciprocal of second fraction 2. Multiply numerators & denomonators 3. Reduce the fraction (if needed) 4. Double underline answer |

How do you find the tax (as a percent) of an item? | 1. Convert percent to decimal. 2. Multiply decimal by cost of item. 3. Double underline answer. |

How do you find the discount (as a percent) of an item? | 1. Convert percent to decimal. 2. Multiply decimal by cost of item. 3. Double underline answer. |

How do you find the percent of a number? | 1. Convert percent to decimal. 2. Multiply decimal by number. 3. Double underline answer. |

How do you write a percent as a decimal? | 1. Move the decimal two places to the left. 2. Double underline answer. |

Define: Probability | The chance that something will or will not happen. |

Define: Event | Something that happens. |

Define: Dependent Event | An event that is affected by another event. |

Define: Independent Event | An event that is not affected by another event. |

Define: Odds | The chance of getting an event correct or incorrect using numbers. |

Define: Frequency | How often something happens in a given amount of time. |

Define: Sample | Part of something |

Define: Random | All data has an equal chance of or of not happening in a certain frequency |

Define: Random Sample | A part of a set of data that has an equal chance of or of not happening in a certain frequency |

Define: Outcome | A possible result given a set of circumstances |

Created by:
jweber19