如图中每个方格的边长为1．
17．直接写出得数．
0 154825 154833 154839 154843 154849 154851 154855 154861 154863 154869 154875 154879 154881 154885 154891 154893 154899 154903 154905 154909 154911 154915 154917 154919 154920 154921 154923 154924 154925 154927 154929 154933 154935 154939 154941 154945 154951 154953 154959 154963 154965 154969 154975 154981 154983 154989 154993 154995 155001 155005 155011 155019 199269
| 0.8×0.6= | 42÷60%= | 1$÷\frac{23}{25}$= | 1.77+2.33= | $\frac{4}{9}$÷12= |
| 7.2÷8= | 3.25×4= | 3.3-0.7= | 7÷1.4= | $\frac{5}{14}$×7= |
