《2025年口算大通关六年级数学下册苏教版》

$\frac{1}{4}+\frac{1}{5}=$ $\frac{3}{7}\times\frac{7}{6}=$ $\frac{(\ \ \ \ )}{6}=\frac{6}{9}$ $12:4=(\ \ \ \ ):2$
$3\div\frac{2}{3}=$ $18\times\frac{2}{9}=$ $\frac{(\ \ \ \ )}{2}=\frac{7.5}{5}$ $5:(\ \ \ \ )=10:6$
$\frac{7}{12}\times36=$ $4.1 - 3.4=$ $\frac{5}{2.5}=\frac{4}{(\ \ \ \ )}$ $(\ \ \ \ ):18=4:9$
$9\div\frac{1}{6}=$ $0.37 + 0.73=$ $\frac{1.6}{4}=\frac{(\ \ \ \ )}{5}$ $33:(\ \ \ \ )=11:2$
$\frac{1}{3}-\frac{2}{9}=$ $\frac{2}{11}\div\frac{10}{11}=$ $\frac{14}{2}=\frac{49}{(\ \ \ \ )}$ $8:(\ \ \ \ )=4:0.8$
$\frac{4}{11}\times\frac{(\ \ \ \ )}{(\ \ \ \ )}=1$ $6\div\frac{(\ \ \ \ )}{(\ \ \ \ )}=36$ $\frac{1.2}{(\ \ \ \ )}=\frac{(\ \ \ \ )}{5}$ $6:(\ \ \ \ )=(\ \ \ \ ):4$

答案： 口算
$\frac{9}{20}$ $\frac{1}{2}$ 4 6
$\frac{9}{2}$ 4 3 3
21 0.7 2 8
54 1.1 2 6
$\frac{1}{9}$ $\frac{1}{5}$ 7 1.6
$\frac{11}{4}$ $\frac{1}{6}$ $\frac{2}{3}$ $\frac{3}{8}$
（画线部分答案不唯一）

$36x = 18$ $2.6 + 3x = 8$ $x+\frac{3}{7}x=\frac{5}{6}$
$1.2x - 3.5 = 6.1$ $4.7x - 2.8x = 38$ $\frac{6}{5}x - x=\frac{1}{4}$

答案： 笔算
$x = \frac{1}{2}$ $x = 1.8$ $x = \frac{7}{12}$
$x = 8$ $x = 20$ $x = \frac{5}{4}$