Scientific Notation, Standard FormDate: 03/14/97 at 16:43:52 From: Beth Subject: Scientific Notation, Standard Form For problems like write 5.2 x 10^6 in standard form, I never know how many spaces to move the decimal point. Thanks! :-) Date: 03/14/97 at 17:37:56 From: Doctor Mike Subject: Re: Scientific Notation, Standard Form Dear Beth, First of all, think of 5.2 as 5.200000000 so you have plenty of room for moving the decimal point. Also, 10^6 (ten to the sixth power) is the same as 10*10*10*10*10*10 or 6 tens that are multiplied together. Each time you multiply by a ten, you move the decimal place over one space, which makes the number ten times larger. If you multiply by ten 6 times, the decimal place gets moved over 6 times, making 5200000.000 which could be written 5200000 without the extra zeros or decimal point, or as 5,200,000 with the commas that people sometimes put in. Any way you write it, it is between 5 million and 6 million. I hope this helps. -Doctor Mike, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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