9.下列选项中关于图角的判断,正确的选项是( )

| A. | ∠5=∠1+∠2 | B. | ∠5=∠1+∠3 | C. | ∠5=∠2+∠3 | D. | ∠5=∠3+∠4 |
5.直接写得数
0 134687 134695 134701 134705 134711 134713 134717 134723 134725 134731 134737 134741 134743 134747 134753 134755 134761 134765 134767 134771 134773 134777 134779 134781 134782 134783 134785 134786 134787 134789 134791 134795 134797 134801 134803 134807 134813 134815 134821 134825 134827 134831 134837 134843 134845 134851 134855 134857 134863 134867 134873 134881 199269
| 452+98= | 1.25×8= | 640÷16= | $\frac{1}{5}$×$\frac{1}{2}$÷$\frac{1}{5}$×$\frac{1}{2}$= |
| 1÷0.125-8= | 5.01-1.8= | 0.25×0.4= | 0.88+0.12= |
| 6.5+9.5+3.5= | $\frac{5}{6}$×$\frac{8}{15}$= |