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# 6th: PSSA Vocabulary

### Use the flashcards to review important math vocabulary.

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

Which property is shown? 3 + (4 + 9) = (3 + 4) + 9 | the associative property of addition |

What is the answer to an addition problem called? | the product |

The average of a set of data is called the .... | mean |

Which property is shown? 4(6 + 10) = 4 x 6 + 4 x 10 | the distributive property |

A polygon having four sides is called a ... | quadrilateral |

An .... is formed when two mathematical expressions are set equal to each other. Example: x + 8 = 9 | equation |

A three-sided polygon is called a .... | triangle |

The answer to a multiplication problem is called.... | the product |

Which property is shown? 4 x 9 = 9 x 4 | the commutative property of multiplication |

The point inside a circle that is the same distance from each point on the circle is called the .... | center |

The line segment that passes through the center of the circle is called the ... | diameter |

When a fraction's numerator is greater than (or equal to) its denominator, it is called an ... fraction. | improper |

A six-sided polygon is called a ... | hexagon |

A triangle with two congruent sides is called an ... triangle. | isosceles |

A straight path in a plane what goes on forever in each direction is called a ... | line |

A part of a line that includes two endpoints is called a ... | line segment |

The number in a set of data that occurs most frequently is called the ... | mode |

The middle number (when numbers are ordered) in a data set is called the ... | median |

What is the product of a whole number and another whole number called? Example: 3, 6, 9, 12, 15, etc. | multiple |

An angle that measures greater than 90 degrees, but less than 180 degrees is called an ... angle. | obtuse |

What is correct way to perform the order of operations? | Parenthesis, Exponents, Multiply/Divide, Add/Subtract |

Lines in a plane that never intersect are called ... | parallel lines |

A five-sided polygon is called a ... | pentagon |

The distance around a polygon is called ... | perimeter |

Two lines that intersect to form right angles are called ... | perpendicular lines |

A closed plane formed by three or more line segments is called a ... | polygon |

A whole number greater than 1, whose only factors are 1 and itself is called a ... | prime number |

A whole number greater than 1 that has three or more factors is called a ... | composite number |

The difference between the greatest and least values in a data set is called the ... | range |

A line segment with one endpoint at the center of a circle and the other endpoint on the circle itself is called the ... | radius |

A quadrilateral with four right angles and whose sides are all congruent is called a ... | square |

An angle that measures exactly 90 degrees is a ... angle. | right |

A triangle with no congruent sides is a ... tiangle. | scalene |

An angle whose measure is exactly 180 degrees is called a ... angle. | straight |

When you find the sum of two numbers, you must ... them. | add |

Fractions with different denominators are called ... | unlike fractions |

A letter that takes the place of a number in an expression is called ... | variable |

The horizontal line on a coordinate plane is called the ... axis. | x |

The vertical line on a coordinate plane is called the ... axis. | y |

The answer to a division problem is called the ... | quotient |