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# Math Vocabulary 1

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

proportion | An equation stating that two ratios or rates are equivalent. |

origin | The point of intersection of the x-axis and the y-axis in a coordinate systems. |

algebra | A mathematical language that uses symbols, usually letters, along with numbers. |

area | The number of square unites needed to cover the enclosed (inside) surface. |

equation | A mathematical sentence that contains an equal (=) sign. |

mean | The sum of the numbers in a set of data divided by the number of pieces of data. |

radiuas | The distance from the center of the circle to any point on the circle. |

yard | A customary unit of length equal to 3 feet, or 36 inches. |

Order of operation | The rule that tells which operation to perform first when more than one operation is used (PEMDAS) (17 letters) |

diameter | The distance across a circle through the center. |

rhombus | A parallelogram with all sides congruent. |

quadrant | One of the four regions in a coordinate separated by a x-axis and a y-axis. |

mode | The number(s) or item(s) that appear most often in a set of data. |

perimeter | The distance around ant closed geometric figure. |

exponent | In a power, the number of times the base is used as a factor*. |

variable | A symbol, usually a letter, used to represent a number. |

percent | A ratio that compares a number to 100. |

circumference | The distance around a circle. |

foot | A customary unite of length |

median | The middle number in a set of data when the data are arranged in numerical order. If the data has an even number, the two middle numbers are added together and then divide by 2. |

equivalent | Having the same value...for instance 1 1/2, = 2/4 |

mixed number | The sum of a whole number and a fraction... for instance 1 1/2, 2 1/2. |

reciprocals | Any two numbers that have a product of 1...(flip flops). |

chord | A segment with endpoints that are on a circle. |

ratio | A comparison of two quantities by division...for instance, 3;4 or 3/4. |

Obtuse angle | An angle that measures greater than 90 degrees, but less than 180 degrees. |

decimals | Numbers that have digits in the tenths, hundredths, thousandths place and beyond. |

outlier | A value that is much higher or much lower than the other values in a set of data. |

improper fraction | A fraction that has a numerator that is greater than equal to the denominator: example 45/6 |

order pair | A pair of numbers used to lactate a point in the coordinate systems: example, (-5, 14). |

Created by:
JamesRip