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68x25十68十68x74简算

利用乘法分配律求解即可:原式=68x(25+74+1)=68x100=6800 望采纳

68x32十68十68X67的简便计算=68x(32+1+67)=68x100=6800

75x68+68x25=(75+25)*68=100*68=6800

47X25十47十47X74=47x(25+1+74)=47x100=4700

25+68+68+68+74=25+74+68*3=25+75-1+(70-2)*3=100-1+210-6=310-7=303

36X68一68十68X65=68*(36-1+65)=68*100=6800

=68*(31+68+1)=68*100=6800

68x32十68x69一68=68*(32+69-1)=68*100=6800

原式=(36-1+65)x68=(35+65)x68=100x68=6800 供参考.

简便运算:68X72十74X68一68=68*(72+74-1)=68*145=9860

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