《2025年通城学典小学毕业考试试题分类精粹数学江苏专版》

39. (2024·宿迁宿豫区)简便计算下面各题。
$72×(\frac {5}{8}-\frac {2}{9}+\frac {7}{12})$
$0.75÷[\frac {7}{6}-(\frac {1}{6}+25\% )]$
$\frac {1}{64}+\frac {1}{32}+\frac {1}{16}+\frac {1}{8}+\frac {1}{4}$

答案： 71 1 $\frac{31}{64}$

40. (2024·泰州兴化)简便计算下面各题。
$12.5×3.2×0.25$ $(\frac {1}{2}+\frac {1}{3}-\frac {1}{4})×12$
$397+403+398+401+399+402$

答案： 10 7 2400

41. (2024·苏州常熟)计算下面各题,能简便计算的要简便计算。
$5÷\frac {5}{6}-\frac {5}{6}÷5$ $(\frac {1}{7}-\frac {1}{11})×7×11$
$3-\frac {3}{7}+\frac {1}{2}-\frac {4}{7}$ $\frac {9}{23}+(\frac {3}{7}+\frac {2}{23})×7$
$2.5×2.8+12×\frac {1}{4}$ $12÷[(\frac {7}{9}-\frac {2}{3})×0.9]$

答案： $5\frac{5}{6}$ 4 $2\frac{1}{2}$ 4 10 120

42. (2024·苏州太仓)计算下面各题,能简便计算的要简便计算。
$(\frac {24}{19}+\frac {16}{17})×\frac {1}{8}+\frac {15}{17}$ $(\frac {1}{9}-\frac {1}{12})×4×9$
$\frac {2}{3}×\frac {5}{11}+\frac {6}{11}÷\frac {3}{2}$
$13.81-1.65-3.81-2.35$
$36÷[(17.5+1.22)÷2.6]$
$20×20.1-1.9×201$

答案： $1\frac{3}{19}$ 1 $\frac{2}{3}$ 6 5 20.1

43. (2024·宿迁沭阳)计算下面各题,能简便计算的要简便计算。
$12.5×0.96×8$ $\frac {6}{5}-\frac {3}{8}+\frac {4}{5}-\frac {5}{8}$
$\frac {27}{14}÷\frac {9}{49}×\frac {3}{7}$ $19×(\frac {5}{17}-\frac {5}{19})×17$
$\frac {4}{5}÷[(\frac {5}{8}-\frac {1}{2})×\frac {4}{3}]$ $\frac {1}{6}+\frac {1}{12}+\frac {1}{20}+\frac {1}{30}+\frac {1}{42}$

答案： 96 1 $\frac{9}{2}$ 10 $\frac{24}{5}$ $\frac{5}{14}$