《2025年王朝霞口算小达人六年级数学上册人教版》

1 直接写出得数。
$5÷\frac {5}{2}= $
$0.4÷\frac {4}{5}= $
$\frac {1}{8}÷\frac {3}{2}= $
$\frac {5}{12}÷5= $
$1.5÷\frac {15}{7}= $
$12÷\frac {12}{13}= $
$24÷\frac {6}{7}= $
$10÷\frac {1}{15}= $
$\frac {9}{20}÷\frac {3}{5}= $
$15÷\frac {20}{9}= $
$2.1÷\frac {3}{8}= $
$\frac {8}{9}÷\frac {5}{18}= $
$\frac {14}{9}÷\frac {7}{27}= $
$\frac {3}{10}÷\frac {11}{15}= $
$12÷\frac {16}{13}= $
$\frac {9}{25}÷\frac {2}{5}= $
$\frac {15}{8}÷5= $
$\frac {12}{5}÷3= $
$\frac {2}{13}÷6= $
$\frac {3}{8}÷\frac {3}{10}= $

答案： 1 2 0.5 $\frac{1}{12}$ $\frac{1}{12}$ 0.7 13 28 150 $\frac{3}{4}$ $\frac{27}{4}$ 5.6 $\frac{16}{5}$ 6 $\frac{9}{22}$ $\frac{39}{4}$ $\frac{9}{10}$ $\frac{3}{8}$ $\frac{4}{5}$ $\frac{1}{39}$ $\frac{5}{4}$

2 计算下列各题,能简算的要简算。
方法练 $\frac {3}{20}÷0.2×\frac {2}{3}$
$\frac {15}{16}+(\frac {7}{16}-\frac {1}{4})÷\frac {1}{2}$
$\frac {8}{13}÷7+\frac {1}{7}×\frac {5}{13}$
$=\frac {3}{20}×5×\frac {2}{3}$
$=( )×\frac {2}{3}$
$=( )$
$18÷\frac {3}{7}÷\frac {14}{3}$
$\frac {1}{9}×\frac {8}{15}+\frac {1}{9}÷\frac {15}{7}$
$[1-(\frac {1}{5}+\frac {3}{10})]÷\frac {1}{10}$

答案： 2 $\frac{3}{4}$ $\frac{1}{2}$ $\frac{21}{16}$ $\frac{1}{7}$ 9 $\frac{1}{9}$ 5

3 课内应用 一块梯形木板的上底是$\frac {4}{5}dm$,下底是$\frac {9}{2}dm$,高是$\frac {5}{3}dm$。这块梯形木板的面积是( )$dm^{2}$。

答案： $\frac{53}{12}$