12.下列画图语言描述正确的是( )
A. | 画直线AB=5cm | B. | 画射线AB=4cm | ||
C. | 在射线OP上截取AP=3cm | D. | 延长线段AB到D,使BD=AB |
6.用竖式计算.(除不尽的保留两位小数)
0 164944 164952 164958 164962 164968 164970 164974 164980 164982 164988 164994 164998 165000 165004 165010 165012 165018 165022 165024 165028 165030 165034 165036 165038 165039 165040 165042 165043 165044 165046 165048 165052 165054 165058 165060 165064 165070 165072 165078 165082 165084 165088 165094 165100 165102 165108 165112 165114 165120 165124 165130 165138 199269
3.02×4.8= | 7.21÷0.89= | 0.94×0.65= |
2.06×120= | 8.49÷4.9= | 36.1÷0.58= |