一、口算。
$9÷0.125=$
$5.6÷1.4=$
$3×4.2=$
$0.63÷0.7=$
$78÷\frac{13}{48}=$
$\frac{2}{5}×\frac{1}{10}=$
$\frac{4}{5}×\frac{7}{8}=$
$\frac{4}{5}-\frac{1}{3}=$
$4.3+1.7=$
$1.98×0.2=$
$2.4×0.5=$
$6-0.6=$
$\frac{3}{11}×\frac{11}{5}=$
$\frac{5}{8}-\frac{1}{6}=$
$\frac{1}{14}÷\frac{3}{7}=$
$\frac{5}{27}+\frac{1}{3}=$
$0.41×5=$
$0.125÷0.25=$
$10-0.04=$
$4.4+1.06=$
$\frac{4}{7}÷\frac{5}{8}=$
$\frac{9}{2}×\frac{4}{15}=$
$\frac{5}{7}÷\frac{5}{6}=$
$\frac{2}{3}÷\frac{8}{5}=$

1. 72
2. 6
3. 12.6
4. 0.9
5. 288
6. $\frac{1}{25}$
7. $\frac{7}{10}$
8. $\frac{7}{15}$
9. 6
10. 0.396
11. 1.2
12. 5.4
13. $\frac{3}{5}$
14. $\frac{11}{24}$
15. $\frac{1}{6}$
16. $\frac{14}{27}$
17. 2.05
18. 0.5
19. 9.96
20. 5.46
21. $\frac{32}{35}$
22. $\frac{6}{5}$
23. $\frac{6}{7}$
24. $\frac{5}{12}$

二、计算下面各题，能简算的要简算。
$\frac{5}{18} × ( \frac{11}{24} + \frac{1}{8} ) ÷ \frac{5}{6}$
$( \frac{2}{5} + \frac{3}{8} ) ÷ ( \frac{9}{10} - \frac{1}{2} )$
$[ 2 - ( \frac{1}{4} + \frac{1}{8} ) ] ÷ \frac{5}{4}$
$0.38 + 9.6 ÷ 3.2$
$8.6 × 0.6 + 8.6 × 0.4$
$3.75 ÷ [ 3 × (1.34 - 0.84) ]$

1. $\frac{7}{36}$
2. $\frac{31}{16}$
3. $\frac{13}{10}$
4. 3.38
5. 8.6
6. 2.5