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67 51 6

上式等于32.6×51.4+67.4×51.6=32.6×51.4+67.4×51.4+67.4×0.2=(32.6+67.4)×51.4+13.48=5140+13.48=5153.48

(1+2+3+4)*5-6+7=51 (1/2+3)*4+5*6+7=51 -12-3+4-5+67=51 1+2+3-4+56-7=51 1+2-3+4+5+6*7=51 1*2+3*4+5*6+7=51 1+2*3+45+6-7=51 1+2*34-5-6-7=51 1+2-3+4+5+6X7 =51 1X2+3X4+5X6+7 =51 1X(2+3X4+5X6+7) =51 -1-2+3+4+5+6X7 =51 再说1便 1 : 1 +...

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