click below

click below

Normal Size Small Size show me how

# Divisibility rules

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

2 | The last digit is even |

3 | If you add up all the digits and the answer is divisible by three, then the whole number is divisible by three |

4 | The last two digits are divisible by four |

5 | The number ends in five or zero |

6 | The number is divisible by three and two |

7 | If you double the last digit and minus it from the rest of the digits and the answer is seven or zero, then the whole number is divisible by seven |

8 | The last three digits are divisible by three |

9 | If you add up all the digits and the answer is divisible by nine, then the whole number is divisible by nine |

10 | The number ends in zero |

11 | If you add up every first number and every second number and minus it from each other and the answer is zero or eleven, then the number is divisible by eleven |

12 | The number is divisible by three and four |