《2025年通城学典计算能手五年级数学下册青岛版五四制》

一、口算。
$20\div\frac{5}{24}=$ $\frac{3}{35}\times\frac{7}{15}=$ $0.88\times99 + 0.88=$
$0.3 + 37\%=$ $\frac{7}{68}\div\frac{7}{18}=$ $1 - (\frac{9}{14}-\frac{5}{14})=$
$10\div50\%=$ $\frac{1}{3}+\frac{40}{9}=$ $3 - 0.25 + 0.75=$
$35\times6=$ $3 - 45\%=$ $24\times(3.2 - 1.2)=$
$0.236\div2=$ $\frac{7}{10}+30\%=$ $3 + 3\div\frac{1}{3}=$
$0.81\div2.7=$ $\frac{6}{11}\div\frac{3}{7}=$ $(37.5\%-\frac{3}{8})\times\frac{3}{4}=$
$\frac{5}{6}\div\frac{2}{3}=$ $0\times\frac{7}{10}=$ $0.6\times3\div0.45=$
$2 - 51\%=$ $\frac{3}{4}+\frac{7}{8}=$ $2.5\times(1\div5)=$
$24\div\frac{12}{5}=$ $\frac{3}{8}\times\frac{2}{3}=$ $\frac{2}{5}+\frac{1}{10}+\frac{4}{5}=$
$200\times0.08=$ $\frac{9}{25}\div0.6=$ $3.72\div1.25\div0.8=$

答案： 96@@$\frac{1}{25}$@@88@@0.67@@$\frac{9}{34}$@@$\frac{5}{7}$@@20@@$\frac{43}{9}$@@3.5@@210@@2.55@@48@@0.118@@1@@12@@0.3@@$\frac{14}{11}$@@0@@$\frac{5}{4}$@@0@@4@@1.49@@$\frac{13}{8}$@@0.5@@10@@$\frac{1}{4}$@@$\frac{13}{10}$@@16@@$\frac{3}{5}$@@3.72

二、解比例。
$\frac{5}{7}:\frac{5}{14}=\frac{2}{3}:x$ $32:x = 56:0.7$ $x:0.3 = 12:0.4$

答案： $x=\frac{1}{3}$@@$x = 0.4$@@$x = 9$