51ߺҽԡúšüҳġΪּԡ֤֤Ǽ֤ԱԡϵͳࡱΪṩߺӢҽ̣ߺѧҽ̣ߺҽ̣ߺѧҽ̣ߺƼҽ̣ߺĿƼҽ̣ߺҽ̣ߺҽ̣ߺҽ̣ߺȫƼҽ̵һһżҽ̷񡣱ߺҽӵߺҽϢԱϢÿ춼д¼ҽϢͽԱ^_^ 
51ߺҽ-ߺõļҽ
ҽ:
ҽ:15155332008
 
ֻ51ߺҽ
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   ǰλã51ߺҽ ҳ Ѷ

Сѧѧ⾭

Դ:51ߺҽ    :4457    :2013-4-7 9:09:53
ߺҽѼСѧѧ
 
˶ڻܵ˶ʱչȻص˶干ͬ·̡
Сѧѧ̲ег⣬һָ⡣
ϵɷֳ·̣ʱ䣬ٶȡ
ǵĻϵʽ£
·=(+)ʱ
ʱ=·̡(+)
һٶ=ٶȺ-֪һٶ

ͣ
 
    лͬʱ480ǧ׵гУ׳ÿСʱʻ40ǧףҳÿСʱʻ42ǧס5Сʱлǧ?(꼶̶)
⣺Ĵ𰸲ֱ5СʱжԶ󣬴صľ480ǧУȥ5Сʱе·̣þľ롣
480-(40+42)5
=480-825
=480-410
=70(ǧ)
5Сʱл70ǧס

    ͬʱӼסԿһÿСʱ56ǧףһÿСʱ63ǧף4Сʱǧ?(꼶̶)
⣺ͬʱԿ4Сʱһٶȳʻʱ䣬ʻ·;һٶȳʻʱ䣬ʻ·̡ʻ·֮ͣؾ롣
564=224(ǧ)
634=252(ǧ)
224+252=476(ǧ)
ۺʽ
564+634
=224+252
=476(ǧ)

   




ٶ:Сѧѧ⾭

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