document.write( "Question 960467: What numbers are missing from the pattern below? Enter your answer, using a comma to separate each number.
\n" ); document.write( "3, 4, 6, 9, ? , ? , ? , ? , 39, 48, 58, 69
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Algebra.Com's Answer #586982 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
The difference increases by 1 at each successive number,
\n" ); document.write( "3+1=4
\n" ); document.write( "4+2=6
\n" ); document.write( "6+3=9
\n" ); document.write( "9+4=13
\n" ); document.write( "13+5=18
\n" ); document.write( "18+6=24
\n" ); document.write( "24+7=31
\n" ); document.write( "31+8=39
\n" ); document.write( "48+9=58
\n" ); document.write( "58+10=69\r
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