《2025年一本暑假计算加应用题五年级数学北师大版》

1. 直接写出得数。(每题 1★)
$12÷\frac {3}{5}=$20 $\frac {5}{6}×\frac {9}{10}=$$\frac{3}{4}$ $\frac {2}{3}÷6=$$\frac{1}{9}$ $\frac {21}{40}÷7=$$\frac{3}{40}$
$\frac {7}{18}-\frac {7}{18}=$0 $\frac {3}{8}÷\frac {15}{16}=$$\frac{2}{5}$ $40÷\frac {5}{8}=$64 $\frac {4}{15}+\frac {1}{12}=$$\frac{7}{20}$
$\frac {8}{45}÷\frac {2}{3}=$$\frac{4}{15}$ $\frac {2}{3}÷\frac {16}{27}=$$\frac{9}{8}$ $\frac {13}{14}÷65=$$\frac{1}{70}$ $0÷\frac {2}{11}=$0
$\frac {2}{15}÷\frac {4}{25}=$$\frac{5}{6}$ $\frac {2}{21}÷\frac {16}{35}=$$\frac{5}{24}$ $\frac {7}{24}÷\frac {7}{12}=$$\frac{1}{2}$ $\frac {5}{7}÷\frac {15}{28}=$$\frac{4}{3}$
$\frac {9}{49}÷\frac {27}{7}=$$\frac{1}{21}$ $\frac {16}{25}÷\frac {8}{9}=$$\frac{18}{25}$ $\frac {5}{34}÷\frac {20}{17}=$$\frac{1}{8}$ $\frac {9}{16}÷\frac {27}{8}=$$\frac{1}{6}$

答案： 20　$\frac{3}{4}$　$\frac{1}{9}$　$\frac{3}{40}$
　0　　$\frac{2}{5}$　64　$\frac{7}{20}$
　$\frac{4}{15}$　$\frac{9}{8}$　$\frac{1}{70}$　0
　$\frac{5}{6}$　$\frac{5}{24}$　$\frac{1}{2}$　$\frac{4}{3}$
　$\frac{1}{21}$　$\frac{18}{25}$　$\frac{1}{8}$　$\frac{1}{6}$

2. 计算下面各题。(写出计算过程)(每题 3★)
$\frac {35}{39}÷\frac {14}{13}$ $\frac {35}{36}÷\frac {5}{6}$ $\frac {15}{16}÷\frac {25}{56}$

答案： $\frac{5}{6}$　$\frac{7}{6}$　$\frac{21}{10}$
　(计算过程略)

3. 解方程。(每题 3★)
$\frac {5}{14}x= \frac {5}{9}$，$x=$$\frac{14}{9}$ $\frac {1}{2}x= 10$，$x=$20 $\frac {3}{10}x= \frac {12}{5}$，$x=$8
$\frac {7}{16}x= \frac {21}{32}$，$x=$$\frac{3}{2}$ $\frac {3}{4}x= \frac {1}{9}$，$x=$$\frac{4}{27}$ $\frac {5}{8}x= \frac {5}{6}$，$x=$$\frac{4}{3}$

答案： $x=\frac{14}{9}$ $x=20$ $x=8$
　$x=\frac{3}{2}$　$x=\frac{4}{27}$　$x=\frac{4}{3}$