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# vocab list #7

### vocabulary words number 7

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

parentheses | parentheses are the the symbols used to show which operation or operations in an expression should be done first. |

brackets | Mathematical brackets are symbols, such as parentheses, that are most often used to create groups or clarify the order that operations are to be done in an algebraic expression. |

braces | e symbols { and } which are used to indicate sets and bring things together. |

numerical expression | The term "numerical" means "involving numbers" and the term "expression" means "phrase". A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols |

evaluate | To evaluate is to find the value of a numerical or algebraic expression. |

ordered pairs | An ordered pair is a pair of numbers used to locate a point on a coordinate plane; the first number tells how far to move horizontally and the second number tells how far to move vertically. |

coordinate plane | The plane determined by a horizontal number line, called the x-axis, and a vertical number line, called the y-axis, intersecting at a point called the origin. Each point in the coordinate plane can be specified by an ordered pair of numbers. |

powers of 10 | a power of 10 is any of the integer powers of the number ten; in other words, ten multiplied by itself a certain number of times (when the power is a positive integer). By definition, the number one is a power (the zeroth power) of ten. |

decimal point | A point or dot used to separate the whole number part from the fractional part of a number. Example: in the number 36.9 the point separates the 36 (the whole number part) from the 9 (the fractional part, which really means 9 tenths). So 36.9 is 36 and nin |

thousandths | One part out of 1,000 equal parts of a whole. |

Created by:
brayden.turner