查看完整版本: 请教奥数题

Marya 2008-11-14 10:28

请教奥数题

[(1)666666.6666*333333.3333=
(2) (0.72*0.75*0.076)/(0.19*0.144*37.5)=
[tt7] [tt7].

amybaba 2008-11-14 19:33

6*3=18
66*33=2178
666*333=221778
6666*3333=22217778




答案=22222222217777777778.

amybaba 2008-11-14 19:43

(0.72*0.75*0.076)/(0.19*0.144*37.5)=
((72*75*76)/(100*100*1000))/((19*144*75)/(100*1000*2))
=((72*75*76)/(19*144*75))/(100/2)
=4/100=0.04.

Marya 2008-11-14 19:44

非常感谢.
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