10．直接写出得数．
0 158909 158917 158923 158927 158933 158935 158939 158945 158947 158953 158959 158963 158965 158969 158975 158977 158983 158987 158989 158993 158995 158999 159001 159003 159004 159005 159007 159008 159009 159011 159013 159017 159019 159023 159025 159029 159035 159037 159043 159047 159049 159053 159059 159065 159067 159073 159077 159079 159085 159089 159095 159103 199269
| 12.5×80= | 1-0.825= | $\frac{4}{7}$×28= | 2.75+2$\frac{1}{4}$= |
| 1÷0.625= | 8×37.5%= | 9$\frac{9}{10}$÷9= | （$\frac{7}{20}$-0.35）÷100= |