document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=507904>Question 507904</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i solve this problem,- The hundreds digit of a three-digit number is 2 more than the units digit. The digits of the original three-digit number are reversed, and the result is subtracted from the original three-digit number. What is the units digit of the result? Describe anything interesting you discover finding the solution. You need to try this out on at least three 3-digit numbers of your choosing. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #340796 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=340796\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Call the digits a,b, and c<BR>\n" );
document.write( "The number is abc<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "a = c + 2 <BR>\n" );
document.write( "abc - cba<BR>\n" );
document.write( "The units digit will be c - (c + 2) ,<BR>\n" );
document.write( "but to do this, you have to carry<BR>\n" );
document.write( "10 over to the c, and you have<BR>\n" );
document.write( "10 + c - (c + 2) = 8<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "abc = 553<BR>\n" );
document.write( "cba = 355<BR>\n" );
document.write( "553 - 355 = 198<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "abc = 917<BR>\n" );
document.write( "cba = 719<BR>\n" );
document.write( "917 - 719 = 198<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "abc = 391<BR>\n" );
document.write( "cba = 193<BR>\n" );
document.write( "391 - 193 = 198<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "The result is always 198 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );