数学计算题过程答案,谢谢! 10
4个回答
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42、原式=833/100*12/5+833/200*67/10-833/10*3/20
=833(12/500+67/2000-3/200)
=833*17/400
=35.4025
43、原式=206/5*81/10+21*37/4-537*19/100
=3(27*206/50+7*37/4-179*19/100)
=3*14198/100=425.94
44、原式=52*5/4+290*24/25+13/2*26/5
=13*5+58*24/5+13*13/5
=494/5+1392/5
=377.2
45、原式=(2109/20)/[37(287/100-1/50)]+2/3*3/10*(253/100+747/100)
=37*57/20*20/(37*57)+1/5*10
=1+2=3
=833(12/500+67/2000-3/200)
=833*17/400
=35.4025
43、原式=206/5*81/10+21*37/4-537*19/100
=3(27*206/50+7*37/4-179*19/100)
=3*14198/100=425.94
44、原式=52*5/4+290*24/25+13/2*26/5
=13*5+58*24/5+13*13/5
=494/5+1392/5
=377.2
45、原式=(2109/20)/[37(287/100-1/50)]+2/3*3/10*(253/100+747/100)
=37*57/20*20/(37*57)+1/5*10
=1+2=3
展开全部
42、原式=833/100*12/5+833/200*67/10-833/10*3/20
=833(12/500+67/2000-3/200)
=833*17/400
=35.4025
43、原式=206/5*81/10+21*37/4-537*19/100
=3(27*206/50+7*37/4-179*19/100)
=3*14198/100=425.94
44、原式=52*5/4+290*24/25+13/2*26/5
=13*5+58*24/5+13*13/5
=494/5+1392/5
=377.2
45、原式=(2109/20)/[37(287/100-1/50)]+2/3*3/10*(253/100+747/100)
=37*57/20*20/(37*57)+1/5*10
=3
=833(12/500+67/2000-3/200)
=833*17/400
=35.4025
43、原式=206/5*81/10+21*37/4-537*19/100
=3(27*206/50+7*37/4-179*19/100)
=3*14198/100=425.94
44、原式=52*5/4+290*24/25+13/2*26/5
=13*5+58*24/5+13*13/5
=494/5+1392/5
=377.2
45、原式=(2109/20)/[37(287/100-1/50)]+2/3*3/10*(253/100+747/100)
=37*57/20*20/(37*57)+1/5*10
=3
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42、原式=833(12/500+67/2000-3/200)
=833*17/400
=35.4025
43、原式=3(27*206/50+7*37/4-179*19/100)
=3*14198/100=425.94
44、原式=52*5/4+290*24/25+13/2*26/5
=13*5+58*24/5+13*13/5
=494/5+1392/5
=377.2
=833*17/400
=35.4025
43、原式=3(27*206/50+7*37/4-179*19/100)
=3*14198/100=425.94
44、原式=52*5/4+290*24/25+13/2*26/5
=13*5+58*24/5+13*13/5
=494/5+1392/5
=377.2
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