document.write( "Question 1119993: how many different numbers of 7 digits are there \n" ); document.write( "

Algebra.Com's Answer #735639 by ikleyn(52834) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "  9999999\r\n" );
document.write( "-  999999\r\n" );
document.write( "----------------\r\n" );
document.write( "  9000000\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Answer.  9000000 7-digit numbers  (9 millions).\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );