《2025年口算大通关六年级数学下册苏教版》

$\frac{14}{15}\div7=$ $1-\frac{1}{5}=$ $\frac{8}{(\ \ \ \ )}=\frac{14}{7}$ $4:6=(\ \ \ \ ):3$
$\frac{3}{8}+\frac{1}{4}=$ $\frac{6}{13}\div2=$ $\frac{5}{20}=\frac{2}{(\ \ \ \ )}$ $3:5=(\ \ \ \ ):20$
$39\times\frac{4}{13}=$ $10\div\frac{5}{3}=$ $\frac{2}{(\ \ \ \ )}=\frac{4}{10}$ $(\ \ \ \ ):0.6 = 4:1.2$
$\frac{2}{11}\div\frac{6}{11}=$ $\frac{4}{7}\times\frac{7}{12}=$ $\frac{6}{(\ \ \ \ )}=\frac{0.3}{0.6}$ $\frac{1}{15}:\frac{1}{9}=(\ \ \ \ ):\frac{1}{3}$
$9\times20\%=$ $3 - 2.8=$ $\frac{32}{5}=\frac{64}{(\ \ \ \ )}$ $14:(\ \ \ \ ) = 21:6$
$\frac{3}{10}\div(\ \ \ \ )=\frac{1}{10}$ $(\ \ \ \ )\times50\% = 2.6$ $\frac{(\ \ \ \ )}{7}=\frac{(\ \ \ \ )}{28}$

答案： $\frac{2}{15}$ $\frac{4}{5}$ 4 2
$\frac{5}{8}$ $\frac{3}{13}$ 8 12
12 6 5 2
$\frac{1}{3}$ $\frac{1}{3}$ 12 $\frac{1}{5}$
1.8 0.2 10 4
3 5.2 $\frac{1}{4}$
（画线部分答案不唯一）

$6:21 = x:28$ $\frac{x}{1.5}=\frac{7.2}{6}$ $\frac{2}{3}:x=\frac{1}{4}:9$
$x:17 = 4:6.8$ $\frac{1.9}{x}=\frac{0.4}{2}$ $\frac{5}{4}:\frac{5}{7}=14:x$

答案： $x = 8$ $x = 1.8$ $x = 24$
$x = 10$ $x = 9.5$ $x = 8$