1. 直接写出得数。
实际用时：分钟
$\frac{13}{25}+\frac{1}{5}=$
$0.5-\frac{3}{10}=$
$\frac{15}{33}×6.6=$
$\frac{36}{25}÷12=$
$\frac{4}{17}+\frac{1}{2}=$
$\frac{24}{19}-\frac{5}{19}=$
$\frac{7}{3}×\frac{3}{14}=$
$\frac{11}{36}÷\frac{1}{6}=$
$\frac{4}{15}+\frac{1}{9}=$
$\frac{16}{21}-\frac{2}{3}=$
$\frac{24}{35}×\frac{5}{8}=$
$1÷\frac{12}{7}=$
$\frac{4}{13}+\frac{1}{2}=$
$\frac{39}{50}-\frac{3}{10}=$
$39×\frac{2}{13}=$
$\frac{24}{39}÷2.4=$
$\frac{1}{20}+\frac{3}{10}=$
$1-\frac{3}{19}=$
$\frac{7}{12}×\frac{24}{25}=$
$32÷\frac{16}{17}=$
$\frac{9}{28}+\frac{2}{7}=$
$\frac{21}{43}-\frac{1}{43}=$
$25×\frac{2}{15}=$
$4.9÷\frac{7}{5}=$
$\frac{5}{24}+\frac{7}{48}=$
$\frac{37}{45}-\frac{5}{9}=$
$\frac{9}{11}×\frac{22}{9}=$
$\frac{21}{32}÷\frac{7}{16}=$
$\frac{5}{8}+\frac{5}{8}=$
$\frac{24}{35}-\frac{24}{35}=$
$\frac{7}{12}×0=$
$0÷\frac{12}{35}=$
$\frac{6}{13}+\frac{7}{13}=$
$\frac{1}{2}-\frac{2}{5}=$
$\frac{5}{13}×1=$
$14÷\frac{7}{5}=$
$\frac{5}{16}+\frac{3}{4}=$
$\frac{4}{5}-\frac{7}{10}=$
$\frac{7}{8}×2.4=$
$2.6÷\frac{13}{15}=$

1. $\frac{18}{25}$ $\frac{1}{5}$ $3$ $\frac{3}{25}$
$\frac{25}{34}$ $1$ $\frac{1}{2}$ $\frac{11}{6}$
$\frac{17}{45}$ $\frac{2}{21}$ $\frac{3}{7}$ $\frac{7}{12}$
$\frac{21}{26}$ $\frac{12}{25}$ $6$ $\frac{10}{39}$
$\frac{7}{20}$ $\frac{16}{19}$ $\frac{14}{25}$ $34$
$\frac{17}{28}$ $\frac{20}{43}$ $\frac{10}{3}$ $\frac{7}{2}$
$\frac{17}{48}$ $\frac{4}{15}$ $2$ $\frac{3}{2}$
$\frac{5}{4}$ $0$ $0$ $0$
$1$ $\frac{1}{10}$ $\frac{5}{13}$ $10$
$\frac{17}{16}$ $\frac{1}{10}$ $2.1$ $3$

2. 计算下面各题。
$(\frac{5}{4} - \frac{1}{6}) ÷ \frac{5}{6}$
$58 - 36 ÷ \frac{2}{3} × \frac{5}{9}$
$\frac{8}{9} × \frac{11}{12} + \frac{1}{9} ÷ \frac{12}{11}$
$1 - \frac{7}{16} ÷ \frac{7}{6} - \frac{5}{8}$
$\frac{25}{9} × \frac{3}{4} - \frac{7}{9} ÷ \frac{4}{3}$
$\frac{4}{5} × 10 × \frac{3}{8} - 2.5$

2. $\frac{13}{10}$ $28$ $\frac{11}{12}$
$0$ $\frac{3}{2}$ $\frac{1}{2}$