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0.0118乘12.5乘括号25E括号加二分之18

解:根据题意列式为: 0.0118x12.5x(25-45)+18/2 =0.0118x12.5x(-20)+9 =-2x0.0059x12.5x4x5+9 =9-12.5x8x0.0295 =9-100x0.0295 =9-2.95 =6.05

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