《2025年通城学典计算能手五年级数学下册青岛版五四制》

 $490÷70 = $ $2.23 + 1.5 = $ $3.55 - 1.48 = $
$0.93×0.2 = $ $2÷16 = $ $2.18 + 3.72 = $
$4.8 + 5.5 = $ $480×20\% = $ $11 - 7.6 = $
$\frac{3}{8}÷\frac{9}{4} = $ $7.2÷0.36 = $ $5.8×20 = $
$6.6×2.3 = $ $\frac{1}{3}+\frac{1}{9} = $ $\frac{13}{16}-\frac{1}{4} = $
$\frac{5}{16}×\frac{3}{5} = $ $\frac{9}{16}÷0.27 = $ $75\%×\frac{2}{9} = $
$9.8 - 3.08 = $ $\frac{4}{5}-\frac{2}{25} = $ $\frac{7}{18}÷\frac{14}{15} = $
$\frac{1}{4}+\frac{1}{10} = $ $354 + 298 = $ $0÷1\frac{2}{5} = $
$3.7×20\% = $ $\frac{2}{3}×\frac{5}{14} = $ $\frac{3}{8}+\frac{5}{9} = $
$\frac{3}{5}÷\frac{33}{20} = $ $1-\frac{3}{11} = $ $10.04 - 3.4 = $

答案： 7@@3.73@@2.07@@0.186@@0.125@@5.9@@10.3@@96@@3.4@@$\frac{1}{6}$@@20@@116@@15.18@@$\frac{4}{9}$@@$\frac{9}{16}$@@$\frac{3}{16}$@@$\frac{25}{12}$@@$\frac{1}{6}$@@6.72@@$\frac{18}{25}$@@$\frac{5}{12}$@@$\frac{7}{20}$@@652@@0@@0.74@@$\frac{5}{21}$@@$\frac{67}{72}$@@$\frac{4}{11}$@@$\frac{8}{11}$@@6.64

 $\frac{5}{9}+\frac{1}{4}x = \frac{2}{3}$         $x×(1+\frac{3}{4}) = 2÷7$          $80\%x - 32\%x = 57.6$

答案： $x = \frac{4}{9}$@@$x = \frac{8}{49}$@@$x = 120$