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# Integer Test Review

### Practice with Integer Operations and PEMDAS

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

-15 + 7 | -8 |

-2 + (-40) | -42 |

12 - (-8) | 20 |

-6 - (-4) | -2 |

-12(9) | -108 |

-5(-8) | 40 |

-63 / (-9) | 7 |

-72 / 6 | -12 |

15 + (-8) | 7 |

-4 - (-5) | 1 |

-7(3) | -21 |

-72/(-3) | 24 |

5 - (-5) | 10 |

1 - 7 | -6 |

3(-12) | -36 |

-48 / (-4) | 12 |

TRUE or FALSE? (Hint: make up a problem and test it out) The sum of two positive integers is always positive. | TRUE sample: 10 + 10 = 20 |

TRUE or FALSE? (Hint: make up a problem and test it out) If x and y are both negative integers, and x is less than y, then the difference of x and y is always positive. | FALSE sample: x = -2 and y = -1 x - y = -2 - (-1) = -1 |

TRUE or FALSE? (Hint: make up a problem and test it out) The product of an even number of negative integers is always positive. | TRUE sample: -2(-2)(-2)(-2) = 4(4) = 16 |

TRUE or FALSE? (Hint: make up a problem and test it out) Let m and n be integers. If the quotient of m and n is negative, then m and n have different signs. | TRUE sample: m = -35 and n = 7 -35 / 7 = -5 |

Simplify the numerical expressions on both sides. Then compare using <, > or = -8 - 2 + 7 _____1 - (-4) - 2 | < |

Simplify the numerical expressions on both sides. Then compare using <, > or =. 1 - (-1) - 1 ____ -1 + (-1) + 3 | = |

Simplify the numerical expressions on both sides. Then compare using <, > or = 6 / 2 x (-1)_____1 / 1 x (-4) | > |

Simplify the numerical expressions on both sides. Then compare using <, > or = -3 x 8 / (-4)_____6 / (-3) x (-2) | > |

Evaluate the expression below: -5 - x for x = -7 | 2 |

Evaluate the expression below: 1 - x + (-3) for x = 2 | -4 |

Evaluate the expressions below: 18 / y for y = -3 | -6 |

Who has the correct answer to 7 + (-2)? Caleb: 5 or Olivia: -9 | Caleb |

Who has the correct answer to -6(-7)? Daniel: -42 or Andrew: 42 | Andrew |

Who has the correct answer to 14 / (-7) x 5? Emily: -10 or Joshua: -7 | Emily |

Who has the correct answer to -1 + (-2) - 3? Grace: -6 or Suki: -1 | Grace |

What term, integer or absolute value, means " the distance the a number is from zero on the number line "? | absolute value |

What term, integer or absolute value, means " any positive or negative whole number, or zero "? | integer |

What operation, add, subtract, multiply or divide goes along with this verse of the song? "Change the minus to a plus, change the sign of the next, now all you do is add them up as if they were a plus" | subtract |

What operation, add, subtract, multiply or divide goes along with this verse of the song? "Same signs add and keep, Different signs subtract. Take the sign of the higher value, then you'll be exact." | add |

What operations, add, subtract, multiply and/or divide go along with this verse of the song? "Same signs and positive thing, Different signs are bad. That's how you multiply and how you divide." | multiply and divide |

Order the following from least to greatest: -76, -80, 15, -95, -100, -25, 0 | -100, -95, -80, -76, -25, 0, 15 |

Evaluate using PEMDAS: 25 - 2(3)(6) + 1 | -10 |

(-6) squared | 36 |

Evaluate using PEMDAS -6 + (-81) / 9 | -15 |

Evaluate using PEMDAS (-6)(-5) + 10/2 | 35 |

Evaluate using PEMDAS -7 + (-2 x 4) x 3 | -31 |

Created by:
jcavalier