17．直接写出得数．
0 154849 154857 154863 154867 154873 154875 154879 154885 154887 154893 154899 154903 154905 154909 154915 154917 154923 154927 154929 154933 154935 154939 154941 154943 154944 154945 154947 154948 154949 154951 154953 154957 154959 154963 154965 154969 154975 154977 154983 154987 154989 154993 154999 155005 155007 155013 155017 155019 155025 155029 155035 155043 199269
| 4.4+0.56= | 0.54÷0.9= | 1-1%= | 0÷4×0.25= |
| $\frac{3}{4}$+$\frac{1}{6}$= | 0.36×$\frac{4}{9}$= | 5656÷56= | $\frac{1}{2}$-$\frac{1}{3}$-$\frac{1}{7}$= |
