《2025年阳光同学计算小达人六年级数学下册人教版》

1. 口算。（建议4分钟完成）
$\frac{5}{7}\div\frac{7}{15}=$ $\frac{7}{25}\times25\%=$ $(\frac{1}{2}+\frac{1}{3})\times12\%=$
$\frac{1}{3}-0.125=$ $\frac{10}{9}\div\frac{9}{10}=$ $75\% + 25\% \times 0=$
$\frac{5}{8}\times\frac{16}{25}=$ $1.25\% \times 32=$ $1\div 75\% - 0.4=$
$\frac{3}{4}-50\%=$ $360\div 60\%=$ $\frac{7}{5}\times\frac{3}{4}\div\frac{7}{5}\times\frac{3}{4}=$
$5.4\times\frac{3}{8}=$ $81\% \times\frac{1}{9}=$ $50000\times 3\% \times 2\%=$

答案： $\frac{75}{49}$@@$\frac{7}{100}$@@$0.1$@@$\frac{5}{24}$@@$\frac{100}{81}$@@$0.75$@@$\frac{2}{5}$@@$0.4$@@$\frac{14}{15}$@@$\frac{1}{4}$@@$600$@@$\frac{9}{16}$@@$\frac{81}{40}$@@$0.09$@@$30$

2. 计算下面各题，能简算的要简算。（建议5分钟完成）
$(\frac{1}{4}-\frac{1}{6})\div 25\%$ $\frac{3}{8}\div(\frac{3}{4}-\frac{3}{8})$ $4.8\times(\frac{1}{6}-\frac{1}{8}+\frac{1}{12})$
$9\div\frac{3}{4}\times\frac{4}{3}-\frac{1}{3}$ $8\div\frac{8}{11}-\frac{8}{11}\div 4$ $\frac{1}{9}\times\frac{14}{5}\div(80\%-\frac{1}{3})$
$\frac{2}{7}+\frac{5}{7}\times 25\% + 75\% \times\frac{5}{7}$ $\frac{8}{9}\times[\frac{3}{4}\div(\frac{7}{16}-\frac{1}{4})]$

答案： $\frac{1}{3}$@@$1$@@$0.6$@@$15\frac{2}{3}$@@$10\frac{9}{11}$@@$\frac{2}{3}$@@$1$@@$\frac{32}{9}$