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# Decimal Ops

### Vocabulary Practice

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

estimate | To find an approximate answer that is relatively close to an exact amount. |

ratio | A comparison of two quantities expressed with a phrase such as ‘the ratio of 3 to 5’ which means ‘3 for every 5.’ Such ratio comparisons are often written as common fractions and in the special notation 3 : 5. 35 3 to 5 3 : 5 |

unit rate | A unit rate is a rate in which the second number (usually written as the denominator) is 1, or 1 of a quantity. |

expanded form | The form of an expression made up of sums or differences of terms, or products of factors of terms |

dividend | The name for the number into which you are dividing in a division problem. For example, 26.5 is the dividend in the problem 26.5 ÷ 4. |

divisor | A number that divides a given number leaving a zero remainder. For example, 5 is a divisor of 20 since 20÷5=4 has a remainder of 0. A divisor of a given number is also known as a factor of that number. |

quotient | The name for the answer to a division problem. For example, 6.625 is the quotient in the number sentence 26.5 ÷ 4 = 6.625. |

repeating decimal | A decimal with a pattern of a fixed number of digits that repeats forever, such as 0.3333333. . . and 0.73737373. . . .Repeating decimals are rational numbers. |

terminating decimal | A decimal that ends, or terminates, such as 0.5 or 0.125. Terminating decimals are rational numbers. |

percent | “Out of 100.” A percent is a special decimal fraction in which the denominator is 100. When we write 68%, we mean 68 out of 100, 68100 , or 0.68. We write the percent sign (%) after a number to indicate percent. |

Created by:
karmstrong