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# SHMS 7th Math Vocab2

### SHMS 7th Grade Math Vocab 2

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

Algebraic expression | An expression consisting of at least one variable and also consists of numbers and operations. Example 2x + 3 |

Term | A number, a variable, or a product of a number and variable. |

Coefficient | The number part of a term that includes a variable. For example, 3 in the term 3x. |

Constant | A quantity having a fixed value that does not change or vary, such as a number. For example, 5 in the expression x + 5. |

Equation | A grouping of numbers, variables, and operations with an equal sign. |

Inequality | A grouping of numbers, variables, and operations with an inequality symbol such as <, >, ≤, and ≥. |

Percent | A part-to-whole ratio that has a number related to 100. |

Ratio | Describes the relationship between two quantities and can be written as a fraction, decimal, or percent. |

Proportion | An equation stating that two ratios are equivalent. |

Scale factor | A ratio between two sets of measurements. |

Distributive Property | Multiplies a factor that is outside of a set of parentheses with each addend within the parentheses to solve. |

Commutative Property | Allows for addends in an addition equation or factors in a multiplication equation to be moved or placed in a different order while solving. |

Associative Property | Allows for addends in addition equations or factors in multiplication equations to be grouped together into different pairs while solving. |

Identity Property | Allows for 0 to be added or 1 to be multiplied by any number and the number remains the same. |

Inverse Property | Allows a number to be added to the opposite number for a sum of zero. Also, a number multiplied by the reciprocal fraction has a product of 1. |

Unit Rate | A ratio that has a number related to 1. |

Constant of Proportionality | Represented by the value of the ratio (k) between y and x as y =kx. |