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# Math Vocabulary

### 5th grade math vocabulary

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

Standard form | A common way of writing a number with commas separting groups of three digits starting from the right. Ex. 3, 4, 5, 8 |

Expanded form | A way to write a number that shows the place vlaue of each digit. Ex. 3,000+500+20+3+0.1+0.07 |

Equivalent decimals | Decimals that name the same amount. Ex. 0.7=0.70 |

Word form | A way to write a number using words. |

Expanded Notation | A way to write a number that shows the digit multiplied times the value of the place the digit is in. EX. (3x1,000) + (5x100)+(2x10)+(3x1)+(9x0.1)+(2z0.01) |

Number Line | A diagram that represents numbers as points on a line. |

Difference | Answer to a subtraction problem |

Sum | Answer to addition problem |

Estimate | A number close to an exact amount |

Expression | A mathematical combination of number, operations, and variables |

Inverse Operation | Operations that undo each other; opposite operations |

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

Product | The answer to a multiplication problem. |

Quotient | The answer to a division problem. |

Input | The number that is put into the "number machine" |

Output | The number that comes out of the "number machine" |

Function | Numbers in the "x" position are not repeating |

Length | The distance from one end of an object to the other end. |

Area | The space a figure takes up. |

Perimeter | The distance around a figure or space. |

Elapsed Time | Amount of time that passes between the start and end of a given period. |

Denominator | Describes the total number of parts that make one whole |

Numerator | Describes the number of parts shaded or being represented |

Slope | Movement of a line of a graph |

Y- intercept | Where the slope crosses the y- axis |

Midpoint | The middle spot in a line segment |

Mean | Average |

Median | Middle number in a set when ordered from smallest to largest |

Mode | The number in a set that occurs the most often |

Range | The difference between the smallest and largest number in a set |