document.write( "Question 317486: How many 9’s are used when 10^99 – 99 is written as a natural number?\r
\n" ); document.write( "\n" ); document.write( "A)97 B)98 c)96 D)99 E)95 \n" ); document.write( "

Algebra.Com's Answer #227385 by Edwin McCravy(20056) $\"\"$ $\"About$

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How many 9’s are used when 10^99 – 99 is written as a natural number?
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document.write( "1000000000000000000000000000···00000000000000000000000000\r\n" );
document.write( "-                                                      99\r\n" );
document.write( "---------------------------------------------------------\r\n" );
document.write( " 999999999999999999999999999···99999999999999999999999901\r\n" );
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document.write( "There are 99 0's on the top line, so there are 99 digits\r\n" );
document.write( "on the bottom line, and the two digits on the end of the\r\n" );
document.write( "bottom line are not 9's, so there are 97 9's in all on\r\n" );
document.write( "the bottom line.  Choice A)\r\n" );
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document.write( "Edwin

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