简便运算:(784*322-213)/(321*784+571)+511*373737/737373
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![简便运算:(784*322-213)/(321*784+571)+511*373737/737373](/uploads/image/z/1119307-67-7.jpg?t=%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%EF%BC%9A%EF%BC%88784%2A322-213%29%2F%28321%2A784%2B571%29%2B511%2A373737%2F737373)
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简便运算:(784*322-213)/(321*784+571)+511*373737/737373
简便运算:(784*322-213)/(321*784+571)+511*373737/737373
简便运算:(784*322-213)/(321*784+571)+511*373737/737373
(784*322-213)/(321*784+571)+511*373737/737373
=[784*(321+1)-213]/(321*784+571)+10101*37*73*7/10101*73
=1+259
=260