简便方法计算题:(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*((2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*(2.17+5.49)
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简便方法计算题:(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*((2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.8
简便方法计算题:(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*((2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*(2.17+5.49)
简便方法计算题:(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*(
(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*(2.17+5.49)
简便方法计算题:(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*((2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*(2.17+5.49)
(2.17+5.49+3.81)*(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)*(2.17+5.49)
=(2.17+5.49+3.81)*(5.49+2.17)+(2.17+5.49+3.81)*9.2-(3.81+2.17+5.49)*(2.17+5.49)-9.2*(2.17+5.49)
=(2.17+5.49+3.81)*9.2-9.2*(2.17+5.49)
=(2.17+5.49)*9.2+3.81*9.2-9.2*(2.17+5.49)
=3.81*9.2
=35.052
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