《2025年阳光同学计算小达人六年级数学下册人教版》

解比例。（建议10分钟完成）
$x:4 = 5:24$ $9:x = 6:0.4$ $2.8:7 = x:0.5$
$12:1.5 = 8:x$ $20:2.5=\frac{x}{4}$ $16:x=\frac{4}{5}$
$\frac{5}{8}:x=\frac{3}{4}:\frac{6}{5}$ $x:\frac{5}{6}=\frac{2}{15}:\frac{4}{9}$ $\frac{3}{2}:\frac{15}{16}=\frac{1}{10}:x$
$\frac{15}{16}:0.75 = x:\frac{4}{5}$ $1.25:x=\frac{4}{3}:\frac{8}{9}$ $x:0.25=\frac{8}{15}:\frac{9}{10}$
$\frac{x}{5}=\frac{9}{40}$ $\frac{1.2}{6}=\frac{2.5}{x}$ $\frac{5}{2.4}=\frac{x}{0.8}$

答案： x = 5/6@@x = 0.6@@x = 0.2@@x = 1@@x = 32@@x = 20@@x = 1@@x = 1/4@@x = 1/16@@x = 1@@x = 5/6@@x = 4/27@@x = 9/8@@x = 12.5@@x = 5/3