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# October Vocab

### Place value & Operations Vocab

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

power of ten | a number that can be written as a product of tens |

exponent | the number in a power that tells how many times to use the base as a factor in repeated multiplication |

base | in a power, the number to show the place value of each digit |

expanded form | a way to write a number to show the place value of each digit |

inverse operations | operations that undo each other; For example, addition and subtraction are inverse operations and multiplication and division are inverse operations. |

place value | the value of a digit based on its position in a number |

tenths | the parts formed when a whole is divided into 10 equal parts |

hundredths | the parts formed when a whole is divided into 100 equal parts |

base ten | a ten-digit number system in which the value of a digit depends on its place; the value of each place is 10 times the value of the place to the right and 1/10 of the value of the place to the left |

thousandths | the parts formed when a whole is divided into 1,000 equal parts |

quotient | the answer in division problem |

sum | the answer in an addition problem |

product | the answer in a multiplication problem |

divisor | the number that is doing the dividing in a division problem |

factors | the numbers being multiplied in a multiplication problem |

dividend | the number that is being divided in a division problem |

addends | the numbers being added in an addition problem |

difference | the answer in a subtraction problem |

remainder | what is left over in a division problem, such as 12/5 |

multiples | any given number times every other number |