Quarts in a GallonDate: 03/20/2001 at 21:50:10 From: Christine Subject: Quarts, gallons I am having trouble finding out how many quarts are in a gallon, and so on. Is there a math problem I can learn by heart without having to memorize the whole chart, or something that would be a lot easier? Date: 03/21/2001 at 14:28:41 From: Doctor Peterson Subject: Re: Quarts, gallons Hi, Christine. When you're working with units, you have to remember at least one fact about each unit; but you can usually limit it to that. In the case of quarts, and so on, I just remember a series of 2's: 1 gallon = 2 half-gallons (this is the trick part, but milk cartons make this seem like a natural unit to use) 1 half-gallon = 2 quarts 1 quart = 2 pints 1 pint = 2 cups If you need to go further, the last step is a bit bigger, but still a power of 2: 1 cup = 8 fluid ounces. It's also of interest that a pint of water weighs something close to a pound; so "a pint's a pound," and since there are 16 fluid ounces in a pint and 16 ounces in a pound, a fluid ounce of water weighs about an ounce. Things almost start to make sense! Let me know if that's not the sort of thing you need. - Doctor Peterson, The Math Forum http://mathforum.org/dr.math/ |
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