# Names for small numbers facts for kids

**Naming very small numbers** is the same as naming very big numbers, but with one important difference. There is a minus sign over what the 10 in the formula is raised to. So if one wanted to write 0.007 in shorthand form, they would write it 7 x 10^{−3} since 7 is the third digit after the decimal point (the zero in front of the decimal point does not count). Naming a very small number with lots of different numbers inside it is the same as doing it with a very big number, but again with that one difference of the minus sign. So 0.0000452 would become 4.52 x 10^{−5} (0.0000452 --> 4.52 x 0.00001 --> 4.52 x 10^{−5}).

## Some examples

0.00000000009 | = | 9 x 10^{−11} |

0.000678 | = | 6.78 x 10^{−4} |

0.000000535645 | = | 5.35645 x 10^{−7} |

## Names for small numbers

English name | European name | |
---|---|---|

10^{0} |
One | One |

10^{−1} |
Tenth | Tenth |

10^{−2} |
Hundredth | Hundredth |

10^{−3} |
Thousandth | Thousandth |

10^{−4} |
Ten Thousandth | Ten Thousandth |

10^{−5} |
Hundred Thousandth | Hundred Thousandth |

10^{−6} |
Millionth | Millionth |

10^{−9} |
Billionth | Milliardth |

10^{−12} |
Trillionth | Billionth |

10^{−15} |
Quadrillionth | Billiardth |

10^{−18} |
Quintillionth | Trillionth |

10^{−21} |
Sextillionth | Trilliardth |

10^{−24} |
Septillionth | Quadrillionth |

## Related pages

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Names for small numbers Facts for Kids. *Kiddle Encyclopedia.*