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KHDBDCM. Kilo, Hecto, Deka, Base, Deci, Centi, Milli. Academic & Science » Mathematics.
S. International System of Units , the metric system of measurement (sometimes called the “modern metric system” to distinguish it from older versions). The acronym SI comes from the French Système international d’unités but is used in all languages.
KHDMDCM. Kilo, Hecto, Deka, Meter, Deci, Centi, Milli (metric measures) KHDMDCM. King Harry Died, Mother Didn’t Cry Much (mnemonic for metric units of measure)
If you teach the metric system, there’s a mnemonic device to help your students remember the prefixes from milli up to kilo. King Henry Died Drinking Chocolate Milk is used to remember the order from largest to smallest: Kilo, Hecto, Deka, Deci, Centi, Milli. And so did King Henry.
King Henry
Throughout his kingdom, King Henry made sure that all of the cows were fed great supplies of chocolate to continue to provide him with his beloved chocolate milk drink. He drank chocolate milk with his dinner. He even drank chocolate milk for his bedtime snack.
King Henry drank chocolate milk by the liters! King Henry was so obsessed with his chocolate milk that he wrote a decree making it illegal for anyone to drink chocolate milk, except for himself. He drank, and drank, and drank his chocolate milk, until one day he overdosed on chocolate milk!
In math, these past few weeks we have been learning about this type of metric conversion. It may sound hard, but with the King, (Kilo) Henry, (Hecto) Doesn’t, (Deka) Usually, (Unit) Drink,(Deci) Chocolate, (Centi) Milk, (Mili)…
Throughout his kingdom, King Henry made sure that all of the cows were fed great supplies of chocolate to continue to provide him with his beloved chocolate milk drink. King Henry drank chocolate milk with his breakfast. He drank chocolate milk with his lunch.
Deci – 10 times smaller. Centi – 100 times smaller. Milli – 1,000 times smaller. A handy trick for remembering the basic metric prefixes is the mnemonic “King Henry Died Until Drinking Chocolate Milk,” (or, if you prefer, “King Henry Doesn’t Usually Drink Chocolate Milk”).
As for the exponent value, just start with 0 at base. Then you go 1, 2, 3, 6, 9, 12….So, here goes, the mnemonic I created for the 12 prefixes in sequence:
It is important because conversions allow us to have some common ground. If your friend is using a meter stick while you are using a yard stick, then it will be hard to communicate measurements with each other, won’t it? I hope that this was helpful.
Converting within the Metric System. While knowing the different units used in the metric system is important, the real purpose behind learning the metric system is for you to be able to use these measurement units to calculate the size, mass, or volume of different objects.