Across |

1. | A metric unit that is used to measure length (2 Words) |

3. | Numbers like 10, 25, 50, or 100 that are used to help make estimates (2 Words) |

7. | A number that tells how many items are in a group (2 Words) |

8. | Information collected about people or things |

9. | A set of related addition and subtraction or multiplication and division number sentences (2 Words) |

12. | A number that uses place value and a decimal point to show tenths, hundredths, and so on |

13. | Operations that undo each other. Addition and subtraction are inverse, or opposite operations, and so are multiplication and division. (2 Words) |

16. | The number of square units needed to cover the surface of a figure |

18. | A figure that begins and ends at the same point (2 Words) |

20. | Figures that have the same size and shape (2 Words) |

21. | A solid, pointed figure that has a flat, round base |

23. | A period that separates the whole numbers from the fractional part of a number; or that separates dollars from cents (2 Words) |

24. | Something that will always happen |

25. | A polygon with 6 sides and 6 angles |