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Order of Magnitude
A classifying scale used to compare the approximate sizes of different objects, where each order of magnitude represents a factor of ten.
One Order of Magnitude
A difference in size or amount that is ten times greater than the reference.
Two Orders of Magnitude
A difference in size or amount that is one hundred times greater than the reference.
Three Orders of Magnitude
A difference in size or amount that is one thousand times greater than the reference.
Zeros Count Method
A method to determine the order of magnitude by counting the number of zeros in a number.
Example of Order of Magnitude Comparison
A pineapple is one order of magnitude larger than a lemon, indicating it is about ten times larger.
Calculation of Order of Magnitude
To find how many orders of magnitude one object is compared to another, divide their sizes and count the zeros in the result.
Note 
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