11.直接写得数
$\frac{1}{3}×$9= | 18×$\frac{1}{6}$= | $\frac{7}{24}$×$\frac{8}{21}$= | $\frac{1}{10}$÷8= | $\frac{5}{8}$÷10= |
3$÷\frac{3}{4}$= | 5$÷\frac{1}{5}$= | $\frac{4}{7}$$÷\frac{4}{5}$= | 1$÷\frac{2}{9}$= | $\frac{1}{7}$$+\frac{1}{8}$= |
0.25×$\frac{2}{5}$×4= | 1.25×$\frac{4}{5}$×8= | $\frac{1}{3}×6×0×\frac{2}{3}$= | $\frac{1}{2}÷\frac{1}{3}$= |
10.在如图中,阴影部分的面积占平行四边形面积的( )
A. | 50% | B. | 25% | C. | 200% |
9.在8:9中,如果前项加上16,要是比值不变,后项应( )
A. | 加上16 | B. | 乘3 | C. | 不变 |
8.下面的算式中,计算结果最小的是( )
0 157733 157741 157747 157751 157757 157759 157763 157769 157771 157777 157783 157787 157789 157793 157799 157801 157807 157811 157813 157817 157819 157823 157825 157827 157828 157829 157831 157832 157833 157835 157837 157841 157843 157847 157849 157853 157859 157861 157867 157871 157873 157877 157883 157889 157891 157897 157901 157903 157909 157913 157919 157927 199269
A. | $\frac{11}{13}$÷$\frac{3}{5}$ | B. | $\frac{11}{13}$×$\frac{3}{5}$ | C. | $\frac{11}{13}$×$\frac{5}{3}$ |