What prefix means one thousandth?

What prefix means one thousandth?

milli

Milli means one thousandth, which is the prefix used for ten to the power of minus three and it is written with a lowercase m.

Think of milli like cutting something into one thousand tiny equal parts and taking one of those parts, for example one milliliter is one thousandth of a liter, and one millimeter is one thousandth of a meter. If you have a whole chocolate bar and you split it into one thousand pieces, each piece would be one thousandth of the bar, which is what milli represents. The prefix attaches to units to make them much smaller, so milli plus meter becomes millimeter, meaning one thousandth of a meter. Remember that the symbol for milli is a lowercase m, so milliampere is written with a small m before the unit.

A common mistake is using an uppercase M instead of a lowercase m and accidentally meaning mega instead of milli, so always use a small m to mean one thousandth. Another mistake is thinking milli means one hundredth because of confusion with centi, so it helps to remember centi is one hundredth and milli is one thousandth. Students sometimes forget to convert correctly when moving between units, so write out the conversion by multiplying or dividing by one thousand to avoid errors.

For more short videos and resources on prefixes and unit conversions visit w w w dot gumball degree dot com.

Understanding the Milli Prefix (One Thousandth)

1. Cut into 1000 equal parts
2. Take one of those parts
3. One milliliter equals 1/1000 liter
4. One millimeter equals 1/1000 meter
5. Prefix attaches to units to shrink them
6. Use lowercase m for milli

Common Milli Prefix Mistakes and Fixes

1. Using uppercase M instead of lowercase m
2. Confusing milli with centi
3. Forgetting to convert by 1000

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