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# Math Unit 2

### Understanding Multiplication

Term | Definition |
---|---|

Groups that have the same number of objects - see words like rows, packages, bags, boxes, shelves | |

Factor | a number that is multiplied by another number to find a product |

Identity Property of Multiplication | The product of any number and 1 is that number. a x 1 = a |

multiply | The operation of repeated addition of the same number. |

multiple | The product of a whole number and any other whole number. |

Zero Property of Multiplication | The product of any number and zero is zero. |

product | the answer to a multiplication problem |

array | An arrangement of objects in equal rows. |

inverse operations | operations that undo each other, such as addition and subtraction or multiplication and division |

fact family | A group of related facts that use the same numbers |

missing factor | the number that makes a multiplication equation true when given one factor and the product |

arrange | To put in a certain order, to display |

equation | A mathematical sentence that contains an equals sign which shows the two mathematical expressions are equal (balanced) |

display | to show, to arrange |

factor pair | Two whole numbers that are multiplied to get a product |

column | the vertical, equal groups in an array |

row | the horizontal, equal groups in an array |

situation | story, event, or scenario that can be solved with math |

times as many | Multiply as many times. (3 times as many is same as 3 x ) |