The classic way to convey the error that exists in a measurement is a formula that shows the obtained measurement (X) as a sum of a true score plus some error. One version of this formula is: X = T + e. With this formula in mind, obtaining more precise measures depends on reducing error.
  Mega is the prefix meaning one million, therefore there are one million (1,000,000) gallons in a mega gallon.
How many glasses of milk are equal to a gallon of milk? Since the average glass size is eight fluid ounces and there are 128 fluid ounces per gallon, all we have to do is divide the two numbers: 128/8 = 16 You need 16 glasses of mâ¦ilk to equal one gallon.