《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。
0.7÷0.01 = 3.14×0.5 = 27.5％ + 25％ =
40×35 = 4 - 0.36 = $\frac{3}{14}×\frac{7}{8}=$
$\frac{7}{16}-\frac{1}{4}=$ $\frac{7}{8}÷\frac{21}{22}=$ $\frac{2}{3}+\frac{1}{5}=$
3.14 + 5.86 = 0.55×4 = 120×$\frac{7}{8}=$
5.6×10％ = $\frac{8}{15}÷\frac{4}{5}=$ 10÷50％ =
$\frac{11}{16}×\frac{32}{33}=$ 30％ + 0.04 = $\frac{6}{7}-\frac{4}{9}=$
$\frac{2}{9}+\frac{5}{12}=$ 0.61÷61 = 3.6×2.5 =
$\frac{5}{32}×16 =$ 3.14×0.8 = 85％ - $\frac{1}{2}=$
6.5 - 1.4 = 0.1÷1％ = 9.6÷0.32 =
$\frac{10}{13}÷\frac{5}{4}=$ 2.8 - 1.65 = 0.65 + 0.35 =

答案： 70@@1.57@@0.525@@1400@@3.64@@$\frac{3}{16}$@@$\frac{3}{16}$@@$\frac{11}{12}$@@$\frac{13}{15}$@@9@@2.2@@105@@0.56@@$\frac{2}{3}$@@20@@$\frac{2}{3}$@@0.34@@$\frac{26}{63}$@@$\frac{23}{36}$@@0.01@@9@@$\frac{5}{2}$@@2.512@@0.35@@5.1@@10@@30@@$\frac{8}{13}$@@1.15@@1

二、解方程。
$(1+\frac{3}{5})x = 56$ 1.8x - 5.9 = 3.1 145％x - x = 31.5

答案： $x = 35$@@$x = 5$@@$x = 70$