12．直接写出得数．
| 1-0.8= | 36÷0.9= | $\frac{5}{8}$+$\frac{3}{8}$= | 0×77= | $\frac{1}{3}$×$\frac{1}{2}$= |
| $\frac{9}{10}$÷3= | 0.72×100= | 18÷2%= | 2.3+4.62= | 3006-106= |
7．直接写出的数．
0 158719 158727 158733 158737 158743 158745 158749 158755 158757 158763 158769 158773 158775 158779 158785 158787 158793 158797 158799 158803 158805 158809 158811 158813 158814 158815 158817 158818 158819 158821 158823 158827 158829 158833 158835 158839 158845 158847 158853 158857 158859 158863 158869 158875 158877 158883 158887 158889 158895 158899 158905 158913 199269
| 10-3.45= | 2+$\frac{6}{5}$= | 12×25%= | 58.3÷0.01= | 3-$\frac{3}{4}$= |
| 1÷$\frac{3}{2}$×$\frac{2}{3}$= | 1÷$\frac{4}{9}$= | $\frac{3}{4}$+0.25= | 0.9+6.35= | 102-82= |
