《2025年阳光同学计算小达人六年级数学上册苏教版》

1. 直接写出得数。(建议 2 分钟完成)
$12÷\frac {6}{7}=$14
$\frac {1}{15}×\frac {3}{4}=$$\frac{1}{20}$
$\frac {5}{8}-\frac {2}{5}=$$\frac{9}{40}$
$2÷\frac {2}{3}=$3
$\frac {1}{6}÷3=$$\frac{1}{18}$
$7+\frac {3}{14}=$$7\frac{3}{14}$
$\frac {1}{9}×27=$3
$\frac {7}{9}÷\frac {5}{7}=$$\frac{49}{45}$
$\frac {5}{16}×\frac {8}{15}=$$\frac{1}{6}$
$\frac {7}{12}÷\frac {7}{24}=$2
$1÷\frac {1}{5}=$5
$\frac {1}{9}÷\frac {1}{3}=$$\frac{1}{3}$
$\frac {3}{4}-\frac {2}{3}=$$\frac{1}{12}$
$\frac {4}{9}×\frac {6}{11}=$$\frac{8}{33}$
$\frac {11}{12}÷22=$$\frac{1}{24}$
$\frac {2}{5}+\frac {5}{6}=$$\frac{37}{30}$
$\frac {7}{12}÷\frac {7}{6}=$$\frac{1}{2}$
$\frac {5}{2}÷\frac {5}{4}=$2
$\frac {18}{25}×\frac {5}{6}=$$\frac{3}{5}$
$30÷\frac {15}{7}=$14

答案： 14 $\frac{1}{20}$ $\frac{9}{40}$ 3 $\frac{1}{18}$ $7\frac{3}{14}$ 3 $\frac{49}{45}$ $\frac{1}{6}$ 2 5 $\frac{1}{3}$ $\frac{1}{12}$ $\frac{8}{33}$ $\frac{1}{24}$ $\frac{37}{30}$ $\frac{1}{2}$ 2 $\frac{3}{5}$ 14

2. 计算下面各题,能简算的要简算。(建议 5 分钟完成)
$\frac {3}{5}×2.83+2.17×\frac {3}{5}$
$(\frac {3}{7}+\frac {5}{8})÷\frac {1}{56}$
$\frac {8}{49}÷[\frac {10}{9}-(\frac {1}{9}+\frac {3}{7})]$
$\frac {5}{8}÷\frac {13}{7}+\frac {3}{8}×\frac {7}{13}$
$\frac {3}{5}×\frac {25}{39}×26-\frac {15}{4}$
$\frac {4}{15}÷\frac {8}{35}×(\frac {9}{14}-\frac {4}{7})$

答案： 3 59 $\frac{2}{7}$ $\frac{7}{13}$ $6\frac{1}{4}$ $\frac{1}{12}$

提升练
假设$m☆n= (m+n)÷(m-n)+1(m＞n)$,则$\frac {5}{12}☆\frac {1}{6}= ($$\frac{10}{3}$$)$,$\frac {31}{3}☆(\frac {7}{10}☆\frac {2}{5})= ($$\frac{62}{17}$$)$。

答案： $\frac{10}{3}$ $\frac{62}{17}$