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整理与复习,(一),287.74 262.65,= 25.09(分),6. 3.8 4 = 48 0.15 = 1.8 1.85 = 0.86 1.2 = 0.125 0.16 = 12 0.16 =,45,30,72,= 12.8 + 19.38,= 32.18,= 57.81 42,= 15.81,= 16.2 + 1.82,= 18.02,= (4.5 + 5.5) 0.9,= 10 0.9,= 9,24.5 5 =,112.5(元),答:往返交通费要用112.5元。,