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# Bernard 5th Gr Math

### Unit 1 Vocab

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

Estimation | reasoning to determine an approximate value |

Rounding | a method for estimating a number by increasing or retaining a specific place value digit according to specific rules and changing all trailing digits to zero |

Compatible Numbers | a method for estimating a group of numbers by slightly adjusting some or all of the numbers to allow for easy mental computation |

Counting (natural) Numbers | the set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n} |

Whole Numbers | the set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n} |

Equivalent | Having the same value. Examples: 1 Dollar is equivalent to 100 cents 120 seconds is equivalent to 2 minutes |

Standard Algorithm | A way of doing multiplication by using partial products or multiplying in parts |

Compensation | a method for adjusting an estimate to draw closer to an exact calculation |

Dividend | the number that is being divided |

Divisor | the number the dividend is being divided by |

Factor | a number multiplied by another number to find a product |

Fluency | efficient application of procedures with accuracy |

Front End Method | a method for estimating a number in which the first digit of a number is retained and all remaining digits are changed to zero |

Product | the total when two or more factors are multiplied |

Proficiency | the mathematical ability to reason, apply, understand, compute, and engage in meaningful mathematics |

Quotient | the size or measure of each group or the number of groups when the dividend is divided by the divisor |

Strip Diagram | a linear model used to illustrate number relationships |

Approximately | Not exact, but close enough to be used. |

Difference | The result of subtracting one number from another. How much one number differs from another. Example: The difference between 8 and 3 is 5 |

Estimate | To find a value that is close enough to the right answer, usually with some thought or calculation involved. Example: Alex estimated there were 10,000 sunflowers in the field by counting one row then multiplying by the number of rows. |

Multiple | The result of multiplying a number by an integer (not by a fraction). Examples: • 12 is a multiple of 3, because 3 × 4 = 1 • But 7 is not a multiple of 3 |

Place Value | The value of where a digit is in the number. Example: In 352, the 5 is in the "tens" place, so its place value is 10 Example: In 17.591, the 9 is in the "hundredths" place, so its place value is 0.01 |

Remainder | The number left over when a quantity cannot be divided evenly. A remainder can be expressed as an integer, fraction, or decimal. |

Sum | The result of adding two or more numbers. Example: 9 is the sum of 2, 4 and 3 (because 2 + 4 + 3 = 9). |

Standard Form | Just the number as we normally write it. Example: 382 is in Standard Form |

Expanded Notation | Writing a number to show the value of each digit. It is shown as a sum of each digit multiplied by its matching place value (ones, tens, hundreds, etc.) For example: 4,265 = 4 × 1,000 + 2 × 100 + 6 × 10 + 5 × 1 |

Reasonableness | checking to verify that the solution is correct or not by using estimation |

About | Nearly, almost |