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# Algebra A, Unit 2

### +-*/, LCM, GCF, Prime Factorization

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

What is the absolute value of 15? | 15 |

What is the absolute value of - 15? | 15 |

15 + ( - 9 ) | 6 |

- 21 - 13 | - 34 |

8 - 12 | - 4 |

- 4 + ( - 8 ) | - 12 |

14.3 - 5.7 | 8.6 |

- 2.1 + 5.6 | 3.5 |

3.9 - 15.4 | - 11.5 |

- 9.1 - 4.5 | - 13.6 |

- 4(3)(2) | - 24 |

- 9(7) | - 63 |

-4( - 2 ) | 8 |

(-1/2)(3/4) | -3/8 |

3/4 + 1/3 | 13/12 |

-2/5 - 4/3 | -26/15 |

11/2 - 9/5 | 37/10 |

(- 4/5 )( - 1/3 ) | 4/15 |

3.4( - 2.1 ) | - 7.14 |

8,567,128( 0 ) | 0 |

What is the prime factorization for 24? | (2^3)(3) |

What is the prime factorization for 105? | 3(5)(7) |

What is the Least Common Multiple of 15 and 21? | 105 |

What is the Least Common Multiple of 6 and 27? | 54 |

What is the Greatest Common Factor of 9 and 42? | 3 |

What is the Greatest Common Factor of 56 and 21? | 7 |

4 + 3 = 3 + 4 is an example of which property? | Commutative Property of Addition |

(5*3)*4=5*(3*4) is an example of which property? | Associative Property of Multiplication |

4 + 0 = 4 is an example of which property? | Identity Property of Addition |

5 + ( - 5 ) is an example of which property? | Inverse Property of Addition |

What is the smallest subset of real numbers to which the number 9 belongs? | Natural Numbers |

What is the smallest subset of real numbers to which the number 1/2 belongs? | Rational Numbers |

What is the smallest subset of real numbers to which the number 0 belongs? | Whole Numbers |

What is the smallest subset of real numbers to which the number square root of 5 belongs? | Irrational Numbers |

What is the smallest subset of real numbers to which the number - 9 belongs? | Integers |

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christyk@esu9.org