# Numbers with Decimal Place Value

## Express given numbers to the ten-thousandths place.

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Practice Numbers with Decimal Place Value

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Tiny Tinkerbell

Credit: Laura Guerin
Source: CK-12 Foundation

Do you know what Tinkerbell and decimals have in common? Did you know that there is a fairyflynicknamed “Tinkerbell”that is the world’s smallest insect?

#### Amazing But True

A fairyfly, or “Tinkerbell” as it has been nicknamed by scientists, is a member of the wasp family and the world’s smallest recorded insect. It makes sense that this insect would be best measured with decimals.

Credit: Laura Guerin
Source: CK-12 Foundation

The average body length of the fairyfly is .0055''. Said another way, the body length is 55 ten-thousandths of an inch. Look at an inch on a ruler and think about how tiny 55 ten-thousandths of one would be. Wow! Decimals are a great way to show how tiny something can be.

See for yourself: http://youtu.be/I3ZbqgxcygQ

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