第三单元跟踪检测卷一、填一填。(第9题3分，其余每空1分，共23分)1.0.72＋0.72＋0.72＋0.72＋0.72＝()×()＝()。2.根据45×37＝1665，直接写出下面各题的得数。4.5×3.7＝()0.45×370＝()4.5×0.37＝()3.1.7×0.9的积是()位小数，3.04×5.3的积是()位小数。4.“神舟”十一号飞船每秒大约飞行7.9千米，1分钟大约飞行()千米。5.将38.4缩小到原来的是()；()扩大到原来的100倍是23.7。6.在括号里填上适当的数。2.3÷()＝0.0230.188×()＝18.82.77×()＝2770300÷()＝0.037.两个因数都扩大到原来的10倍后，积是476，原来的积是()。8.在INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\YQ.TIF"\*MERGEFORMATINET里填上“＞”“＜”或“＝”。326×0.79INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\YQ.TIF"\*MERGEFORMATINET3264.03×3.1INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\YQ.TIF"\*MERGEFORMATINET4.034.9×0.85INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\YQ.TIF"\*MERGEFORMATINET4.94.9×0.85INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\YQ.TIF"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\YQ.TIF"\*MERGEFORMATINET0.859.在INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\随圆.tif"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\随圆.tif"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\随圆.tif"\*MERGEFORMATINET里填上适当的数。25×(0.77×0.4)＝INCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\随圆.tif"\*MERGEFORMATINETINCLUDEPICTURE"D:\\方正转Word\\4BS好卷\\随圆.tif"\*MERGEFORMATINETINCLUDEPICTURE"E:\\20春\\小学\\4BS\\好卷\\文件\\随圆...
