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# 6/7th Math Vocab

### Vocab for the first half of the year

WORD | MEANING/DEFINITION | EXAMPLE |
---|---|---|

Difference | Left over amount when one value is subtracted from another | 10 - 7 = 3 (3 is the Difference) |

Product | Total when a number is added multiple times using a shortcut; answer to a multiplication problem | 5 x 9 = 45 (45 is the Product) |

Quotient | Answer to a division problem; Making groups of with division | 15/5 = 3 (15 divided by 5 has a quotient of 3) |

Factors | Numbers being multiplied together to get a product; some numbers have many factors | 7 x 8 = 56 (7 and 8 are the factors) |

Prime Numbers | Numbers you can only divide by themself and one; they only have 2 factors | 1, 2, 3, 5, 7, 11... |

Composite Numbers | Numbers that have more than 2 factors | 4, 6, 8, 9, 10... (4 -> 2 x 2 AND 4 x 1) |

Decimal | Part of a whole; less than 1; same as a proper fraction; found by dividing a proper fraction | 0.25 is the same as the fraction 1/4 0.5 is less than 1 whole (it's half) |

Fraction Model | Visual representation of a fraction; used to help understand operations with fractions | Imagine a picture of a circle broken into 8 parts. Each part is 1/8 |

Prime Factorization | Finding all the factors of numbers in their prime forms using a factor tree | The number 20 is 10 x 2, and 10 is 5 x 2 Prime factorization is 2x2x5 |

Numerical Expression | a basic math problem with the operations of +,-, x, / and just numbers, NO EQUAL SIGNS; you evaluate them | 5 x6, 7+7, 8/2, 10-1 |

Algebraic Expression | a basic math problem that has numbers and variables | a + 2, cd, 8-w, 15/d |

Variable | a lowercase letter used in place of a number throughout one problem; used in algebra | a = 5 Evaluate a + 3 -> means 5 + 3 is the same as 8 |

Integer | Positive and Negative whole numbers on a number line | -3, -2, -1, 0, 1, 2, 3... (The numbers go as long as you can count) |

Distributive Property | find or use a common number both other numbers can divide or multiply by, the common number is multiplied by the other factors which are in parenthesis being added | 12 + 10 = 22 Distributive Property -> 2(6 +5) |

GCF | Greatest Common Factor or think "the biggest number I can divide all the other numbers by" | GCF of 12 and 24 is 12. GCF of 15 and 20 is 5. |

LCM | Least Common Multiple or think the smallest value other numbers share after multiplying themselves | LCM of 4 and 6 is 12 LCM of 110 and 10 is 110 |

Commutative Property | numbers can be either added or multiplied in any order and it will not change the outcome | 2 + 3 = 3 +2 4 x 5 = 5 x 4 |

Sum | Total amount when two or more numbers are added together | 3 + 5 + 10 = 18 (18 is the SUM) |