document.write( "Question 1013030: Estimate the value of 6327 x 7
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document.write( "Also Estimate the value of 6742/8 by using compatible numbers.\r
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document.write( "Please help thank you for the assistance! \n" );
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Algebra.Com's Answer #629194 by Boreal(15235) You can put this solution on YOUR website! 6327 X 7 is about 42,000 (6000 x 7) \n" ); document.write( "7000*7=49,000. But 6327 is closer to 6000, so the estimate is closer to 42,000 than it is to 49,000. \n" ); document.write( "6742*8 \n" ); document.write( "first estimate: 7000*8=56,000 (too high) \n" ); document.write( "second estimate: recognize that it is 8*6 3/4 thousands (6750 is 6 3/4 thousands) \n" ); document.write( "8*6=48; 8*(3/4)=6 \n" ); document.write( "48+6=54,000, very close to true value. \n" ); document.write( "========== \n" ); document.write( "alternative estimate. \n" ); document.write( "it is between 8*6000 and 8*7000 or between 48,000 and 56,000. \n" ); document.write( "742 is closer to the higher thousand than the lower, so the estimate is closer to 56,000 than it is to 48,000. \n" ); document.write( " |