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# 4th Grade Tier 3

### Operations and Algebraic Thinking

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

Multiplication | The operation of repeated addition. |

Division | is splitting into equal parts or groups. It is the result of "fair sharing". |

Dividend | The value to be divided in a division problem |

Divisor | The value by which another quantity is divided in a division problem. |

Addition | A mathematical operation that combines two or more numbers to calculate a sum. |

Subtraction | A mathematical operation that calculates the difference between two numbers |

Equations | A mathematical statement divided by an equal symbol that states the two values or expressions have the same value. |

Unknown | The missing number in a number sentence |

Remainders | The number left over when an integer is divided by another |

Reasonableness | Within likely or sensible boundaries. |

Mental Computation | the mental processes used to achieve the answer. |

Estimation | An approximate and reasonable answer that is close to the exact answer without actually calculating the exact answer. |

Rounding | means making a number simpler but keeping its value close to what it was. |

Factor Pairs | A factor pair refers to a set of two numbers, which when multiplied result in a definite number. |

Factor | the value that can be divided into another value with no remainder |

Multiple | The result of multiplying a number by an integer (not by a fraction) |

Prime Numbers | A number that has exactly two different factors, one and itself |

Composite Numbers | A whole number that can be divided evenly by numbers other than 1 or itself. |