《2025年阳光同学计算小达人五年级数学下册冀教版》

1. 直接写出得数。（建议2分钟完成）
$\frac{8}{9}\div4=$ $\frac{5}{8}\div25=$ $\frac{7}{10}\div\frac{7}{8}=$ $\frac{12}{13}\times\frac{3}{2}=$
$9\div\frac{6}{7}=$ $\frac{12}{13}\div\frac{4}{13}=$ $\frac{3}{5}\times\frac{1}{2}=$ $14\div\frac{5}{7}=$
$\frac{4}{5}-\frac{1}{2}=$ $\frac{3}{4}\times\frac{2}{5}=$ $\frac{6}{7}\div\frac{2}{49}=$ $\frac{3}{16}\div\frac{27}{32}=$
$24\times\frac{5}{36}=$ $8+\frac{1}{8}=$ $\frac{5}{16}\times\frac{8}{15}=$ $\frac{9}{28}\times\frac{7}{36}=$

答案： $\frac{2}{9}$@@$\frac{1}{40}$@@$\frac{4}{5}$@@$\frac{18}{13}$@@$\frac{21}{2}$@@3@@$\frac{3}{10}$@@$\frac{98}{5}$@@$\frac{3}{10}$@@$\frac{3}{10}$@@21@@$\frac{2}{9}$@@$\frac{10}{3}$@@8 $\frac{1}{8}$@@$\frac{1}{6}$@@$\frac{1}{16}$

2. 计算下面各题，能简算的要简算。（建议6分钟完成）
$\frac{13}{8}-(\frac{5}{12}-\frac{1}{4})$ $\frac{3}{8}\div(\frac{2}{3}-\frac{5}{8})$ $\frac{8}{11}\div(\frac{7}{8}\times\frac{4}{7})-\frac{2}{3}$
$\frac{11}{12}-\frac{3}{10}-\frac{1}{5}$ $32\times(1 - \frac{3}{8})\div\frac{5}{9}$ $\frac{4}{9}\times\frac{7}{11}+\frac{4}{11}\div\frac{9}{4}$
$(\frac{1}{2}-\frac{3}{7})\times\frac{7}{15}+\frac{2}{5}$ $\frac{3}{4}\div\frac{7}{20}-\frac{5}{7}\times\frac{1}{20}$ $(\frac{7}{8}+\frac{3}{2}-\frac{3}{4})\div\frac{1}{16}$

答案： $\frac{35}{24}$@@9@@$\frac{26}{33}$@@$\frac{5}{12}$@@36@@$\frac{4}{9}$@@$\frac{13}{30}$@@$\frac{59}{28}$@@26

用简便方法计算。
$25\frac{7}{160}\times4$ $13\frac{2}{51}\times3$ $7\times12\frac{5}{14}$

答案： 100 $\frac{7}{40}$@@39 $\frac{2}{17}$@@86 $\frac{1}{2}$