1. 直接写出得数。(24☆)
$\frac{1}{2}×4=$
$\frac{3}{5}×1.5=$
$\frac{7}{8}×\frac{4}{7}=$
$\frac{2}{9}×\frac{3}{4}=$
$\frac{5}{8}÷\frac{5}{4}=$
$\frac{9}{10}÷\frac{3}{2}=$
$\frac{2}{3}÷\frac{1}{6}=$
$\frac{7}{8}÷\frac{7}{4}=$
$3.6×\frac{2}{3}=$
$\frac{5}{6}×0.4=$
$\frac{2}{7}×2.8=$
$1.8×\frac{3}{4}=$
$1.4÷\frac{5}{6}=$
$3.5÷\frac{3}{5}=$
$1.2÷\frac{3}{4}=$
$1.8÷\frac{6}{7}=$
$\frac{5}{8}×1.4=$
$2.1×\frac{3}{7}=$
$\frac{3}{10}×\frac{5}{6}=$
$\frac{11}{12}×\frac{8}{11}=$
$\frac{8}{3}÷2.4=$
$0.7÷\frac{7}{8}=$
$\frac{7}{10}÷\frac{7}{5}=$
$\frac{3}{5}÷\frac{3}{10}=$

1. 2 0.9 $\frac{1}{2}$ $\frac{1}{6}$ $\frac{1}{2}$ $\frac{3}{5}$ 4 $\frac{1}{2}$ 2.4 $\frac{1}{3}$ 0.8 1.35 1.68 $5\frac{5}{6}$ 1.6 2.1 0.875 0.9 $\frac{1}{4}$ $\frac{2}{3}$ $1\frac{1}{9}$ 0.8 $\frac{1}{2}$ 2

2. 填一填。(10☆)

2. 4 2 3 40 9 4 125.6 25.12 28.26 18.84

3. 在$◯$里填上“＞”“＜”或“=”。(8☆)
$\frac{1}{5}÷\frac{7}{5} ◯ \frac{1}{5}×\frac{7}{5}$
$\frac{4}{5} ◯ \frac{4}{5}÷\frac{4}{5}$
$\frac{7}{10}÷\frac{1}{2} ◯ \frac{7}{10}×\frac{1}{2}$
$\frac{12}{13}÷\frac{6}{13} ◯ \frac{13}{24}×\frac{24}{7}$
$\frac{4}{15}÷\frac{4}{3} ◯ \frac{4}{15}×\frac{5}{8}$
$\frac{5}{9}÷\frac{6}{5} ◯ \frac{9}{5}×\frac{6}{5}$
$\frac{3}{7}÷2.1 ◯ \frac{3}{7}×2.1$
$\frac{14}{15}÷\frac{7}{5} ◯ \frac{12}{15}×\frac{5}{3}$

3. ＜ ＜ ＞ ＞ ＞ ＜ ＜ ＜

4. 计算下面各题,能简算的要简算。(18☆)
$11.26×\frac{3}{4}+0.75÷\frac{4}{3}-7$
$\frac{3}{5}×\frac{1}{4}+\frac{3}{5}×\frac{3}{4}$
$6+\frac{2}{7}÷\frac{3}{7}$
$(\frac{4}{7}+\frac{8}{9})×7×9$
$\frac{4}{15}×24÷\frac{4}{21}$
$19×\frac{9}{19}+\frac{10}{19}×19$
用时：分钟 ★共得：☆/100 ☆

4. 2.0075 $\frac{3}{5}$ $6\frac{2}{3}$ 92 33.6 19