《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★)
$34×\frac {5}{17}=$10 $\frac {5}{7}×\frac {7}{5}=$1 $\frac {2}{5}×10=$4 $2^{3}=$8
$\frac {1}{3}×\frac {12}{13}=$$\frac{4}{13}$ $\frac {5}{8}×\frac {16}{25}=$$\frac{2}{5}$ $\frac {1}{6}×\frac {12}{5}=$$\frac{2}{5}$ $3^{3}=$27
$69×\frac {18}{23}=$54 $\frac {9}{4}×\frac {28}{27}=$$\frac{7}{3}$ $\frac {3}{16}×48=$9 $11^{2}=$121
$\frac {3}{5}×\frac {3}{8}=$$\frac{9}{40}$ $\frac {14}{13}×\frac {13}{14}=$1 $24×\frac {5}{6}=$20 $0.5^{3}=$0.125
$\frac {7}{20}×4=$$\frac{7}{5}$ $\frac {25}{29}×\frac {4}{5}=$$\frac{20}{29}$ $\frac {4}{7}×\frac {3}{8}=$$\frac{3}{14}$ $0.4^{3}=$0.064

答案： 10 1 4 8
$\frac{4}{13}$ $\frac{2}{5}$ $\frac{2}{5}$ 27
54 $\frac{7}{3}$ 9 121
$\frac{9}{40}$ 1 20 0.125
$\frac{7}{5}$ $\frac{20}{29}$ $\frac{3}{14}$ 0.064

2. 计算下面各题。(写出计算过程)(每题 3★)
$\frac {5}{21}×\frac {9}{25}$ $\frac {9}{22}×\frac {55}{12}$ $\frac {16}{15}×\frac {45}{8}$

答案： $\frac{3}{35}$ $\frac{15}{8}$ 6
（计算过程略）

3. 计算下面各题,能简算的要简算。(每题 3★)
$\frac {5}{9}+(\frac {7}{8}-\frac {5}{9})$ $\frac {3}{2}-\frac {3}{8}-\frac {5}{8}$ $\frac {3}{5}-\frac {4}{7}+\frac {3}{7}$
$\frac {2}{9}+\frac {1}{5}+\frac {7}{9}$ $\frac {3}{5}-(\frac {2}{15}+\frac {1}{3})$ $\frac {10}{11}+\frac {9}{14}-\frac {5}{14}+\frac {1}{11}$

答案： $\frac{7}{8}$ $\frac{1}{2}$ $\frac{16}{35}$
$1\frac{1}{5}$ $\frac{2}{15}$ $1\frac{2}{7}$