(1)根据题意得: 27+4+4.5-1, =35.5-1, =34.5 (2)根据题意得: 27+4+4.5, =35.5 27+4+4.5-1-2.5-4, =35.5-1-2.5-4, =29 (3)27×1000×(1+1.5‰) =27000×(1+1.5‰) =27040.5(元) 28×1000-28×1000×1.5‰-28×1000×1‰ =28000-28000×1.5‰-28000×1‰ =28000-42-28 =27930(元) 27930-27040.5=889.5(元) 故答案为:(1)34.5;(2)35.5;28;(3)889.5元. |