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# Math - 5th Sept

### GSD Math Benchmark - 5th Grade September

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

composite number | A number greater than 0 that has more than two different factors. The number 9 is a composite number because it has three factors: 1 |

prime number | A whole number greater than 0 that has exactly two different factors |

factor(s) | The whole numbers that are multiplied to get a product. In 6 x 3 = 18 |

array | An arrangement of objects in equal rows. |

exponent | The number that tells how many equal factors there are. |

square number | A number that is the result of multiplying an integer by itself. Any square number of dots can be arranged in a square array. |

prime factorization | A way to show a number as the product of prime factors. The prime factorization of 12 is 2 x 2 x 3. |

Commutative Property | Changing the order of the addends does not change the sum. Changing the order of the factors does not change the product. |

area | The measure in square units, of the inside of a plan figure. |

point | An exact location in space represented by a dot. |

line | A set of connected point continuing without end in both directions. |

line segment | A part of a line with two endpoints. |

ray | A part of a line that has one endpoint and goes on forever in one direction. |

vertex | The point at which two line segments |

parallel lines | Lines in the same plane that are always the same distance apart. |

perpendicular lines | Lines that form a right angle. |

acute angle | An angle with a measure less than 90 degrees. |

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

obtuse angle | An angle with a measure greater than 90 degrees. |

straight angle | An angle with a measure of 180 degrees. |

range | The difference between the greatest number and the least number in a set of numbers. |

mode | The number that appears most frequently in a set of numbers. There may be one |