$3÷2.5=$
$\frac{2}{5}÷2=$
$\frac{11}{12}÷\frac{11}{18}=$
$\frac{1}{2}÷\frac{4}{5}=$
$0.125×\frac{3}{8}=$
$\frac{3}{4}÷\frac{1}{4}=$
$\frac{6}{7}÷3=$
$12÷\frac{4}{3}=$
$\frac{1}{9}÷6=$
$35÷\frac{5}{9}=$
$\frac{7}{15}÷\frac{1}{3}=$
$\frac{6}{5}÷\frac{1}{15}=$
$\frac{2}{91}÷\frac{2}{13}=$
$\frac{6}{7}÷\frac{9}{14}=$
$\frac{4}{5}÷\frac{5}{6}=$
$\frac{3}{20}÷1.5=$
$\frac{4}{9}÷\frac{2}{3}=$
$\frac{5}{6}×\frac{6}{11}=$
$\frac{5}{12}×\frac{6}{5}=$
$\frac{8}{21}×\frac{3}{4}=$

1. 1.2
2. $\frac{1}{5}$
3. $\frac{3}{2}$
4. $\frac{5}{8}$
5. $\frac{3}{64}$
6. 3
7. $\frac{2}{7}$
8. 9
9. $\frac{1}{54}$
10. 63
11. $\frac{7}{5}$
12. 18
13. $\frac{1}{7}$
14. $\frac{4}{3}$
15. $\frac{24}{25}$
16. $\frac{1}{10}$
17. $\frac{2}{3}$
18. $\frac{5}{11}$
19. $\frac{1}{2}$
20. $\frac{2}{7}$

2 填表
建议用时2分钟 评价：☆☆☆

r

$\frac{4}{5}$ dm

$\frac{3}{2}$ m
0.2 dm

$\frac{1}{2}$ m

d
6.8 cm

4.8 cm


38 cm

$\frac{3}{8}$ dm

2. 3.4 cm $\frac{8}{5}$ dm 2.4 cm 3 m 0.4 dm 19 cm 1 m $\frac{3}{16}$ dm

3 脱式计算（能简算的要简算）
建议用时4分钟 评价：☆☆☆
$45÷(\dfrac{5}{8}÷\dfrac{3}{8})$
$54×(\dfrac{1}{6}-\dfrac{1}{9})$
$0.625×4.7+\dfrac{5}{8}×5.3$
$\dfrac{10}{3}÷(\dfrac{5}{7}-\dfrac{10}{21})$
$\dfrac{5}{9}×\dfrac{4}{15}÷\dfrac{4}{9}$
$\dfrac{16}{23}×27+\dfrac{19}{23}×16$

3. 27
3
$\frac{25}{4}$
14
$\frac{1}{3}$
32