document.write( "Question 766115: 0 5 18 43 84 145 ? what is the next number in this given series?
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Algebra.Com's Answer #466918 by Edwin McCravy(20056)\"\" \"About 
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document.write( "Write the numbers in a column:\r\n" );
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document.write( "  0\r\n" );
document.write( "  5 \r\n" );
document.write( " 18 \r\n" );
document.write( " 43 \r\n" );
document.write( " 84 \r\n" );
document.write( "145\r\n" );
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document.write( "Starting with the first number 0, subtract it from\r\n" );
document.write( "the number just below it, 5, getting 5 and write the\r\n" );
document.write( "difference out to the right of that number in a \r\n" );
document.write( "second column. Do that all the way down to 185-84=61\r\n" );
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document.write( "  0   5     \r\n" );
document.write( "  5  13         \r\n" );
document.write( " 18  25     \r\n" );
document.write( " 43  41       \r\n" );
document.write( " 84  61    \r\n" );
document.write( "145        \r\n" );
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document.write( "Do the same thing with the second column. Starting with \r\n" );
document.write( "the first number 5, subtract it from the number just \r\n" );
document.write( "below it, 13, getting 8, and write the difference\r\n" );
document.write( "out to the right of that number in a third column.\r\n" );
document.write( "Do that all the way doen to 61-41=20\r\n" );
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document.write( "  0   5   8     \r\n" );
document.write( "  5  13  12         \r\n" );
document.write( " 18  25  16      \r\n" );
document.write( " 43  41  20     \r\n" );
document.write( " 84  61    \r\n" );
document.write( "145\r\n" );
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document.write( "Make one more column in the same way, and we see\r\n" );
document.write( "that they are all 4's\r\n" );
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document.write( "  0   5   8   4  \r\n" );
document.write( "  5  13  12   4       \r\n" );
document.write( " 18  25  16   4   \r\n" );
document.write( " 43  41  20     \r\n" );
document.write( " 84  61    \r\n" );
document.write( "145\r\n" );
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document.write( "Since they are all 4's we put another 4 at the \r\n" );
document.write( "bottom of the fourth column and work backward \r\n" );
document.write( "from right to left there by adding.  That is \r\n" );
document.write( "4+20=24, 24+61=85, 85+145=230\r\n" );
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document.write( "  0   5   8   4  \r\n" );
document.write( "  5  13  12   4       \r\n" );
document.write( " 18  25  16   4   \r\n" );
document.write( " 43  41  20   4     \r\n" );
document.write( " 84  61  24    \r\n" );
document.write( "145  85\r\n" );
document.write( "230\r\n" );
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document.write( "Answer: 230.\r\n" );
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document.write( "Edwin
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