《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 3 分钟完成）
$\frac{8}{9} \div 4 =$ $\frac{5}{8} \div 25 =$ $\frac{7}{10} \div \frac{7}{8} =$ $\frac{8}{7} \div \frac{8}{7} =$
$9 \div \frac{6}{7} =$ $\frac{12}{13} \div \frac{4}{13} =$ $\frac{3}{5} \div \frac{1}{2} =$ $1 \div \frac{4}{15} =$
$\frac{4}{5} \div \frac{1}{2} =$ $\frac{3}{4} \div \frac{2}{5} =$ $\frac{6}{7} \div \frac{2}{49} =$ $\frac{2}{9} \div \frac{1}{54} =$
$\frac{5}{24} \div \frac{5}{36} =$ $8 \div \frac{1}{8} =$ $\frac{5}{16} \div \frac{8}{15} =$ $\frac{7}{2} \div \frac{91}{10} =$
$9 \div \frac{1}{9} =$ $\frac{25}{52} \div \frac{25}{26} =$ $\frac{11}{7} \div \frac{22}{3} =$ $\frac{5}{24} \div \frac{1}{8} =$

答案： $\frac{2}{9}$@@$\frac{1}{40}$@@$\frac{4}{5}$@@1@@$\frac{21}{2}$@@3@@$\frac{6}{5}$@@$\frac{15}{4}$@@$\frac{8}{5}$@@$\frac{15}{8}$@@21@@12@@$\frac{3}{2}$@@64@@$\frac{75}{128}$@@$\frac{5}{13}$@@81@@$\frac{1}{2}$@@$\frac{3}{14}$@@$\frac{5}{3}$

2. 计算下面各题。（建议 6 分钟完成）
$\frac{14}{25} \div \frac{4}{15} + \frac{4}{5}$ $1 - \frac{5}{8} \div \frac{25}{12} - \frac{5}{12}$ $(\frac{3}{4} - \frac{3}{4} \times \frac{8}{9}) \div \frac{3}{2}$
$\frac{4}{5} \div (\frac{5}{6} \times \frac{3}{5})$ $(\frac{7}{8} - \frac{3}{16}) \div (\frac{3}{4} + \frac{5}{8})$ $(\frac{2}{3} + \frac{4}{3} \times \frac{9}{16}) \div \frac{11}{12}$
$\frac{7}{8} \div \frac{10}{11} \times \frac{5}{14}$ $\frac{13}{7} \div 11 + \frac{8}{7} \times \frac{1}{11}$ $\frac{3}{14} \times (\frac{1}{5} + \frac{3}{10} \div \frac{3}{5})$

答案： $\frac{29}{10}$@@$\frac{17}{60}$@@$\frac{1}{18}$@@$\frac{8}{5}$@@$\frac{1}{2}$@@$\frac{17}{11}$@@$\frac{11}{32}$@@$\frac{3}{11}$@@$\frac{3}{20}$