《2025年星级口算天天练六年级数学上册苏教版》

1. 直接写出得数。$9÷\frac{1}{6} = \frac{3}{5}×2 = 5×\frac{7}{10} = \frac{7}{18}÷\frac{1}{15} = 6×\frac{5}{27} = \frac{1}{10}:\frac{1}{2} = \frac{6}{17}×\frac{7}{4} = \frac{8}{45}×30 = \frac{4}{5}÷\frac{5}{4} = \frac{8}{13}×\frac{3}{8} = \frac{9}{10}÷18 = \frac{4}{5}:8 = \frac{4}{7}×\frac{5}{16} = \frac{13}{7}÷2 = \frac{9}{11}×\frac{1}{3} = \frac{9}{14}÷\frac{3}{7} = $

答案： 1. 54 $\frac{6}{5}$ $\frac{7}{2}$ $\frac{35}{6}$ $\frac{10}{9}$ $\frac{1}{5}$ $\frac{21}{34}$ $\frac{16}{3}$ $\frac{16}{25}$ $\frac{3}{13}$ $\frac{1}{20}$ $\frac{1}{10}$ $\frac{5}{28}$ $\frac{13}{14}$ $\frac{3}{11}$ $\frac{3}{2}$

2. 把下面的分数改写成百分数,除不尽的保留一位小数。$\frac{7}{10} = \frac{3}{25} = \frac{3}{8} = \frac{1}{5} = \frac{2}{9}\approx \frac{5}{7}\approx \frac{8}{5} = \frac{3}{4} = \frac{11}{20} = \frac{1}{6}\approx \frac{2}{3}\approx \frac{5}{2} = $

答案： 2. 70% 12% 37.5% 20% 22.2% 71.4% 160% 75% 55% 16.7% 66.7% 250%

3. 解方程。$x-\frac{1}{6}x= \frac{1}{4}2x+\frac{2}{5}= \frac{3}{5}\frac{2}{3}x÷\frac{1}{4}= 12$

答案： 3. $x=\frac{3}{10}$ $x=\frac{1}{10}$ $x=\frac{9}{2}$

4. 食品安全是全社会关注的焦点问题之一,质检部门抽查一种大米200袋,其中有4袋不合格,合格率是多少？

答案： 4. $(200-4)÷ 200=98\%$