To remember the prefixes in order, you can use the following sentences: King Henry Doesn't [Usually] Drink Chocolate Milk The letters of the words stand for the prefixes, with "Usually" in the middle standing for the "unit", being meters, grams, or liters based on what you are measuring/converting at the time. Many memory phrases omit the "Usually", and consequently students forget where the basic unit goes, messing up their conversions. Leave the "Usually" in there so you can keep things straight: kilo- hecto- deka- [unit] deci- centi- milli- Since each step is ten times or one-tenth as much as the step on either side, we have: 1 km = 10 hectometers = 100 dekameters = 1000 meters = 10,000 decimeters = 100,000 centimeters = 1,000,000mm, All you are doing is multiplying by 10 for each time you move from bigger to smaller units. Alternatively, we have: 1 milliliter = 0.1 centiliters = 0.01 deciliters = 0.001 liters = 0.000 1 dekaliters = 0.000 01 hectoliters = 0.000 001 kiloliters All you are doing is dividing by 10 each time you move from small units to bigger units. The point here is that you move from one prefix to another by moving the decimal point one place, filling in, as necessary, with zeroes. To move to a smaller unit (a unit with a prefix some number of places further to the right in the listing), you move the decimal place to the right that same number of places, and vice versa. Together with the prefix sentence ("King Henry..."), this makes conversion between the different metric sizes very simple. Example 1: Convert 12.54 kilometers to centimeters. How many jumps is it from "kilo-" to "centi-"? Five, to the right. So I move the decimal point five places to the right, filling in the extra space with zeroes:
To remember the prefixes in order, you can use the following sentences: King Henry Doesn't [Usually] Drink Chocolate Milk The letters of the words stand for the prefixes, with "Usually" in the middle standing for the "unit", being meters, grams, or liters based on what you are measuring/converting at the time. Many memory phrases omit the "Usually", and consequently students forget where the basic unit goes, messing up their conversions. Leave the "Usually" in there so you can keep things straight: kilo- hecto- deka- [unit] deci- centi- milli- Since each step is ten times or one-tenth as much as the step on either side, we have: 1 km = 10 hectometers = 100 dekameters = 1000 meters = 10,000 decimeters = 100,000 centimeters = 1,000,000mm, All you are doing is multiplying by 10 for each time you move from bigger to smaller units. Alternatively, we have: 1 milliliter = 0.1 centiliters = 0.01 deciliters = 0.001 liters = 0.000 1 dekaliters = 0.000 01 hectoliters = 0.000 001 kiloliters All you are doing is dividing by 10 each time you move from small units to bigger units. The point here is that you move from one prefix to another by moving the decimal point one place, filling in, as necessary, with zeroes. To move to a smaller unit (a unit with a prefix some number of places further to the right in the listing), you move the decimal place to the right that same number of places, and vice versa. Together with the prefix sentence ("King Henry..."), this makes conversion between the different metric sizes very simple. Example 1: Convert 12.54 kilometers to centimeters. How many jumps is it from "kilo-" to "centi-"? Five, to the right. So I move the decimal point five places to the right, filling in the extra space with zeroes:
Metric%20System%20Class%20Worksheet%20docx.docx