document.write( "Question 995060: When I turn my calculator upside down, the digits 0,1,2,5,6,8 and 9 still appear as digits. For example, when I turn my calculator upside down, 65259 remains the same- that is, it stays 65259. How many whole numbers between 100 and 1000 remains the same when I turn my calculator upside down?
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document.write( "A. 6x7
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document.write( "B. 6x5
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document.write( "C. 6x5x6
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document.write( "D. 6x7x6 \n" );
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Algebra.Com's Answer #613907 by MathLover1(20850)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( "\n" ); document.write( "the first digit can be any of \n" ); document.write( "\n" ); document.write( "the last digit is determined by the first digit (has to be it's \"flip\")\r \n" ); document.write( "\n" ); document.write( "the middle digit has to be one that flips to itself: \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so, answer is:\r \n" ); document.write( "\n" ); document.write( "B. |