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下面各题，怎样算简便就怎样算（87-45）×7812×35+25×121320×19+13201011×113×13×11513×127+57×513-5132008×20062007（47+29）×7×95-3×79+291513-（79-813+29）
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▼优质解答
答案和解析
（1）（87-45）×78，=87×78-45×78，=1-710，=310；（2）12×35+25×12，=12×（35+25），=12×1，=12；（3）1320×19+1320，=1320×（19+1），=1320×20，=13；（4）1011×113×13×11，=（1011×11）×（113×13...
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