# My Math - GR4 - Unit 1

Vocabulary Words for Unit 1 of the 4th grade My Math series

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

expanded form | The representation of a number as a sum that shows the value of each digit. | 1,000 + 500 + 20 + 8 |

standard form | The usual way of writing a number that shows only its digits, no words | 10,569 |

written form | The form of a number that uses written words | ten thousand, two hindered fifty-one |

digit | Any symbol used to write a whole number | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 |

period | The name given to each group of three digits in a place value chart. | |

round | to change the value of a number to one that is easier to work with; to find the nearest value of a number based on a given place value | 6,897 becomes 7,000 |