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# GoMath Module 10 G6

### vocabulary from module 10 in 6th grade GoMath textbook

Term | Definition |
---|---|

algebraic expression | an expression that contains one or more variables and may also contain operation symbols, such as + or - |

variable | a letter or symbol used to represent an unknown or unspecified number. The value may change. |

constant | a specific number whose value does not change |

order of operations | PEMDAS Parentheses, Exponents, Multiplication, Division, Addition, Subtraction |

evaluating | the process of substituting a number for a variable and then finding the value of the expression |

commutative property of addition | when adding, changing the order of the numbers does not change the sum |

commutative property of multiplication | when multiplying, changing the order of the numbers does not change the product |

associative property of addition | when adding more than two numbers, the grouping of the numbers does not change the sum |

associative property of multiplication | when multiplying more than two numbers, the grouping of the numbers does not change the product |

distributive property | multiplying a number by a sum or difference is the same as multiplying by each number in the sum or difference and then adding or subtracting |

identity property of addition | adding zero to a number does not change it's value |

identity property of multiplication | multiplying a number by one does not change it's value |

coefficient | numbers that are multiplied by at least one variable |

terms | the partws of the expression that are separated by + or - signs |

like terms | terms with the same variable(s) raised to the same power(s) |