1.计算(能简算的要简算).
$\frac{5}{6}$÷(1-$\frac{9}{20}$)×$\frac{1}{5}$ | $\frac{2}{5}$×$\frac{6}{11}$+40%×$\frac{5}{11}$ | $\frac{9}{16}$÷($\frac{3}{8}$+$\frac{1}{16}$) |
($\frac{24}{19}$+$\frac{16}{17}$)×$\frac{1}{8}$+$\frac{15}{17}$ | ($\frac{1}{3}$-$\frac{1}{6}$+$\frac{1}{4}$)×12 | $\frac{7}{4}$×$\frac{5}{8}$+$\frac{1}{4}$÷$\frac{8}{5}$ |
19.直接写得数.
0 155615 155623 155629 155633 155639 155641 155645 155651 155653 155659 155665 155669 155671 155675 155681 155683 155689 155693 155695 155699 155701 155705 155707 155709 155710 155711 155713 155714 155715 155717 155719 155723 155725 155729 155731 155735 155741 155743 155749 155753 155755 155759 155765 155771 155773 155779 155783 155785 155791 155795 155801 155809 199269
$\frac{5}{8}$×16= | $\frac{3}{4}$×10%= | 1÷100%= | 15÷1%= | ($\frac{1}{4}$-$\frac{1}{5}$)×$\frac{1}{20}$= |
$\frac{2}{11}$÷2= | 1.5-$\frac{1}{2}$= | $\frac{2}{3}$÷$\frac{3}{2}$= | 6÷$\frac{3}{4}$= | $\frac{3}{4}$×$\frac{5}{6}$÷$\frac{5}{6}$×$\frac{3}{4}$= |