画一画．
9．直接写出得数（后四题估算）．
0 158699 158707 158713 158717 158723 158725 158729 158735 158737 158743 158749 158753 158755 158759 158765 158767 158773 158777 158779 158783 158785 158789 158791 158793 158794 158795 158797 158798 158799 158801 158803 158807 158809 158813 158815 158819 158825 158827 158833 158837 158839 158843 158849 158855 158857 158863 158867 158869 158875 158879 158885 158893 199269
| $\frac{3}{8}$+$\frac{3}{8}$×7= | 2-$\frac{7}{9}$= | 1÷$\frac{1}{8}$+$\frac{1}{8}$÷1= | $\frac{3}{4}$÷0.75= | 0×$\frac{4}{5}$= |
| 4时-1时23分= | 359÷41≈ | 252×38≈ | 849-751≈ | 449+542≈ |