中考中有关有理数的运算题目虽然不多,但通过题目的创新,一些阅读理解、探索发现的题目还是很给力的.例1某汽车维修公司的维修点环形分布如图1.公司在年初分配给A、B、C、D四个维修点某种配件各50件.在使用前发现需将A、B、C、D四个维修点的这批配件分别调整为40、45、54、61件,但调整只能在相邻维修点 Although there are not many arithmetic problems in the senior high school entrance examination, the problems of reading comprehension and exploring are still very much awkward through the innovation of the topic. Example 1 The distribution of the maintenance points of a certain automobile maintenance company is shown in Figure 1. The company is assigned A, B, C, D four maintenance points for a certain kind of parts 50. Found before the need to A, B, C, D four maintenance points of these fittings were adjusted to 40,45,54,61 , But the adjustment can only be in the adjacent maintenance point