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# Math Vocabulary

### WES math vocabulary 2018

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

an angle that is less than 90 degrees | acute angle |

an angle that is more than 90 degrees and less than 180 degrees | obtuse angle |

what we measure angles in | degrees |

a number that has more than two factors | composite |

a number found by dividing the sum of two or more addends by the number of addends, often referred to as the average | mean |

the value of a digit three places to the right of the decimal | thousandths |

a triangle with all sides the same length | equilateral triangle |

a triangle that has at least 2 congruent sides | isosceles triangle |

a triangle whose largest angle measures greater than 90 degrees | obtuse triangle |

a triangle that has one 90 degree angle | right triangle |

a triangle that has no congruent sides | scalene triangle |

the number of cubic units it takes to fill a solid | volume |

a whole number greater than 1 that has exactly 2 factors, 1 and itself. | prime number |

Number that cannot be divided by 2. | Odd Number |

Number that is divisable by 2. | Even Number |

The chance that a particular outcome will occur. | Probability |

an endless collection of points along a straight path | line |

part of a line that has two endpoints | line segment |

part of a line that has one endpoint and extends endlessly in the other direction | ray |

has four sides and four angles | quadrilateral |

has five sides and five angles | pentagon |

has six sides and six angles | hexagon |

has eight sides and eight angles | octagon |

value of a digit one place to the right of the decimal | tenths |

not likely to happen | unlikely |

To reduce a fraction is to put it in what? | Simplest Form |

Another word for equal fractions is what? | Equivalent Fractions |

When adding or subtracting decimals, what do you do with the decimals? | Line them up |

When multiplying decimals what do you do with the decimals? | Count the spaces that are right of the decimal |

When dividing decimals what do you do with the decimal? | Bring it straight up |

When given a set of numbers you find this when you subtract the smallest number from the largest. | Range |

To find the average is to also find the what? | Mean |

The number that occurs most often in a set of numbers is the what? | Mode |

What is the name of a fraction whose numerator is larger than the denominator? | Improper Fraction |

What is the name of the number above the fraction bar? | Numerator |

What is the name of the number below the fraction bar? | Denominator |

What math tool do you use to measure the degrees in an angle? | Protractor |

This type of graph often shows changes over time | Line Graph |

On a stem and leaf plot digits in the ones place are known as the what? | Leaves |

What do you call a rectangle with all sides the same length? | Square |

What is the name for a quadrilateral with only one pair of parallel lines? | Trapezoid |

A what moves a figure up, down, or over? ** slide ** | Translation |

A what produces a mirror image of figure? ** flip ** | Reflection |

A what rotates a figure around a point? ** turn ** | Rotation |

What is another term for average or mean? | fair share |

The MOD Eis the number that occurs __________ ________. | most often |

How do you find the RANGE? | Subtract the smallest number from the biggest one. |

What is the clue for MODE? | MOOOOOOOST |

What is the clue for MEDIAN? | The MEDIAN in the road is in the middle. |

What is the median in this data set? 8, 15, 21, 25, 33 | 21 |

an event with a no chance of occuring has a probability of | zero |

the result of division | quotient |

in whole number division, when you have divided as far as you can without using decimals, what has not yet been divided | remainder |